---
_id: '7303'
abstract:
- lang: eng
text: The electrolyte in the non-aqueous (aprotic) lithium air battery has a profound
influence on the reactions that occur at the anode and cathode, and hence its
overall operation on discharge/charge. It must possess a wide range of attributes,
exceeding the requirements of electrolytes for Lithium ion batteries by far. The
most important additional issues are stability at both anode and cathode in the
presence of O2. The known problems with cycling the Li metal/non-aqueous electrolyte
interface are further complicated by O2. New and much less understood are the
reactions at the O2 cathode/electrolyte interface where the highly reversible
formation/decomposition of Li2O2 on discharge/charge is critical for the operation
of the non-aqueous lithium air battery. Many aprotic electrolytes exhibit decomposition
at the cathode during discharge and charge due to the presence of reactive reduced
O2 species affecting potential, capacity and kinetics on discharge and charge,
cyclability and calendar life. Identifying suitable electrolytes is one of the
key challenges for the non-aqueous lithium air battery at the present time. Following
the realisation that cyclability of such cells in the initially used organic carbonate
electrolytes is due to back-to-back irreversible reactions the stability of the
non-aqueous electrolytes became a major focus of research on rechargeable lithium
air batteries. This realisation led to the establishment of a suite of experimental
and computational methods capable of screening the stability of electrolytes.
These allow for greater mechanistic understanding of the reactivity and guide
the way towards designing more stable systems. A range of electrolytes based on
ethers, amides, sulfones, ionic liquids and dimethyl sulfoxide have been investigated.
All are more stable than the organic carbonates, but not all are equally stable.
Even though it was soon realised, by a number of groups, that ethers exhibit side
reactions on discharge and charge, they still remain the choice in many studies.
To date dimethyl sulfoxide and dimethylacetamide were identified as the most stable
electrolytes. In conjunction with the investigation of electrolyte stability the
importance of electrode stability became more prominent. The stability of the
electrolyte cannot be considered in isolation. Its stability depends on the synergy
between electrolyte and electrode. Carbon based electrodes promote electrolyte
decomposition and decompose on their own. Although great progress has been made
in only a few years, future work on aprotic electrolytes for Li-O2 batteries will
need to explore other electrolytes in the quest for yet lower cost, higher safety,
stability and low volatility.
article_processing_charge: No
author:
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Yuhui
full_name: Chen, Yuhui
last_name: Chen
- first_name: Fanny
full_name: Bardé, Fanny
last_name: Bardé
- first_name: Kensuke
full_name: Takechi, Kensuke
last_name: Takechi
- first_name: Fuminori
full_name: Mizuno, Fuminori
last_name: Mizuno
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
citation:
ama: 'Freunberger SA, Chen Y, Bardé F, Takechi K, Mizuno F, Bruce PG. Nonaqueous
Electrolytes. In: Imanishi N, Luntz AC, Bruce P, eds. The Lithium Air Battery:
Fundamentals. New York, NY: Springer Nature; 2014:23-58. doi:10.1007/978-1-4899-8062-5_2'
apa: 'Freunberger, S. A., Chen, Y., Bardé, F., Takechi, K., Mizuno, F., & Bruce,
P. G. (2014). Nonaqueous Electrolytes. In N. Imanishi, A. C. Luntz, & P. Bruce
(Eds.), The Lithium Air Battery: Fundamentals (pp. 23–58). New York, NY:
Springer Nature. https://doi.org/10.1007/978-1-4899-8062-5_2'
chicago: 'Freunberger, Stefan Alexander, Yuhui Chen, Fanny Bardé, Kensuke Takechi,
Fuminori Mizuno, and Peter G. Bruce. “Nonaqueous Electrolytes.” In The Lithium
Air Battery: Fundamentals, edited by Nobuyuki Imanishi, Alan C. Luntz, and
Peter Bruce, 23–58. New York, NY: Springer Nature, 2014. https://doi.org/10.1007/978-1-4899-8062-5_2.'
ieee: 'S. A. Freunberger, Y. Chen, F. Bardé, K. Takechi, F. Mizuno, and P. G. Bruce,
“Nonaqueous Electrolytes,” in The Lithium Air Battery: Fundamentals, N.
Imanishi, A. C. Luntz, and P. Bruce, Eds. New York, NY: Springer Nature, 2014,
pp. 23–58.'
ista: 'Freunberger SA, Chen Y, Bardé F, Takechi K, Mizuno F, Bruce PG. 2014.Nonaqueous
Electrolytes. In: The Lithium Air Battery: Fundamentals. , 23–58.'
mla: 'Freunberger, Stefan Alexander, et al. “Nonaqueous Electrolytes.” The Lithium
Air Battery: Fundamentals, edited by Nobuyuki Imanishi et al., Springer Nature,
2014, pp. 23–58, doi:10.1007/978-1-4899-8062-5_2.'
short: 'S.A. Freunberger, Y. Chen, F. Bardé, K. Takechi, F. Mizuno, P.G. Bruce,
in:, N. Imanishi, A.C. Luntz, P. Bruce (Eds.), The Lithium Air Battery: Fundamentals,
Springer Nature, New York, NY, 2014, pp. 23–58.'
date_created: 2020-01-15T12:17:55Z
date_published: 2014-03-05T00:00:00Z
date_updated: 2021-01-12T08:12:54Z
day: '05'
doi: 10.1007/978-1-4899-8062-5_2
editor:
- first_name: Nobuyuki
full_name: Imanishi, Nobuyuki
last_name: Imanishi
- first_name: Alan C.
full_name: Luntz, Alan C.
last_name: Luntz
- first_name: Peter
full_name: Bruce, Peter
last_name: Bruce
extern: '1'
fulldoi: https://doi.org/10.1007/978-1-4899-8062-5_2
language:
- iso: eng
month: '03'
oa_version: None
page: 23-58
place: New York, NY
publication: 'The Lithium Air Battery: Fundamentals'
publication_identifier:
eisbn:
- '9781489980625'
isbn:
- '9781489980618'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Nonaqueous Electrolytes
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '7304'
abstract:
- lang: eng
text: Lithium-air batteries have received extraordinary attention recently owing
to their theoretical gravimetric energies being considerably higher than those
of Li-ion batteries. There are, however, significant challenges to practical implementation,
including low energy efficiency, cycle life, and power capability. These are due
primarily to the lack of fundamental understanding of oxygen reduction and evolution
reaction kinetics and parasitic reactions between oxygen redox intermediate species
and nominally inactive battery components such as carbon in the oxygen electrode
and electrolytes. In this article, we discuss recent advances in the mechanistic
understanding of oxygen redox reactions in nonaqueous electrolytes and the search
for electrolytes and electrode materials that are chemically stable in the oxygen
electrode. In addition, methods to protect lithium metal against corrosion by
water and dendrite formation in aqueous lithium-air batteries are discussed. Further
materials innovations lie at the heart of research and development efforts that
are needed to enable the development of lithium-oxygen batteries with enhanced
round-trip efficiency and cycle life.
article_processing_charge: No
article_type: original
author:
- first_name: D.G.
full_name: Kwabi, D.G.
last_name: Kwabi
- first_name: N.
full_name: Ortiz-Vitoriano, N.
last_name: Ortiz-Vitoriano
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Y.
full_name: Chen, Y.
last_name: Chen
- first_name: N.
full_name: Imanishi, N.
last_name: Imanishi
- first_name: P.G.
full_name: Bruce, P.G.
last_name: Bruce
- first_name: Y.
full_name: Shao-Horn, Y.
last_name: Shao-Horn
citation:
ama: Kwabi DG, Ortiz-Vitoriano N, Freunberger SA, et al. Materials challenges in
rechargeable lithium-air batteries. MRS Bulletin. 2014;39(5):443-452. doi:10.1557/mrs.2014.87
apa: Kwabi, D. G., Ortiz-Vitoriano, N., Freunberger, S. A., Chen, Y., Imanishi,
N., Bruce, P. G., & Shao-Horn, Y. (2014). Materials challenges in rechargeable
lithium-air batteries. MRS Bulletin. CUP. https://doi.org/10.1557/mrs.2014.87
chicago: Kwabi, D.G., N. Ortiz-Vitoriano, Stefan Alexander Freunberger, Y. Chen,
N. Imanishi, P.G. Bruce, and Y. Shao-Horn. “Materials Challenges in Rechargeable
Lithium-Air Batteries.” MRS Bulletin. CUP, 2014. https://doi.org/10.1557/mrs.2014.87.
ieee: D. G. Kwabi et al., “Materials challenges in rechargeable lithium-air
batteries,” MRS Bulletin, vol. 39, no. 5. CUP, pp. 443–452, 2014.
ista: Kwabi DG, Ortiz-Vitoriano N, Freunberger SA, Chen Y, Imanishi N, Bruce PG,
Shao-Horn Y. 2014. Materials challenges in rechargeable lithium-air batteries.
MRS Bulletin. 39(5), 443–452.
mla: Kwabi, D. G., et al. “Materials Challenges in Rechargeable Lithium-Air Batteries.”
MRS Bulletin, vol. 39, no. 5, CUP, 2014, pp. 443–52, doi:10.1557/mrs.2014.87.
short: D.G. Kwabi, N. Ortiz-Vitoriano, S.A. Freunberger, Y. Chen, N. Imanishi, P.G.
Bruce, Y. Shao-Horn, MRS Bulletin 39 (2014) 443–452.
date_created: 2020-01-15T12:18:05Z
date_published: 2014-05-01T00:00:00Z
date_updated: 2021-01-12T08:12:54Z
day: '01'
doi: 10.1557/mrs.2014.87
extern: '1'
fulldoi: https://doi.org/10.1557/mrs.2014.87
intvolume: ' 39'
issue: '5'
language:
- iso: eng
month: '05'
oa_version: None
page: 443-452
publication: MRS Bulletin
publication_identifier:
issn:
- 0883-7694
- 1938-1425
publication_status: published
publisher: CUP
quality_controlled: '1'
status: public
title: Materials challenges in rechargeable lithium-air batteries
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 39
year: '2014'
...
---
_id: '7305'
abstract:
- lang: eng
text: When lithium–oxygen batteries discharge, O2 is reduced at the cathode to form
solid Li2O2. Understanding the fundamental mechanism of O2 reduction in aprotic
solvents is therefore essential to realizing their technological potential. Two
different models have been proposed for Li2O2 formation, involving either solution
or electrode surface routes. Here, we describe a single unified mechanism, which,
unlike previous models, can explain O2 reduction across the whole range of solvents
and for which the two previous models are limiting cases. We observe that the
solvent influences O2 reduction through its effect on the solubility of LiO2,
or, more precisely, the free energy of the reaction LiO2* ⇌ Li(sol)+ + O2−(sol) + ion
pairs + higher aggregates (clusters). The unified mechanism shows that low-donor-number
solvents are likely to lead to premature cell death, and that the future direction
of research for lithium–oxygen batteries should focus on the search for new, stable,
high-donor-number electrolytes, because they can support higher capacities and
can better sustain discharge.
article_processing_charge: No
article_type: original
author:
- first_name: Lee
full_name: Johnson, Lee
last_name: Johnson
- first_name: Chunmei
full_name: Li, Chunmei
last_name: Li
- first_name: Zheng
full_name: Liu, Zheng
last_name: Liu
- first_name: Yuhui
full_name: Chen, Yuhui
last_name: Chen
- first_name: Stefan Alexander
full_name: Freunberger, Stefan Alexander
id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
last_name: Freunberger
orcid: 0000-0003-2902-5319
- first_name: Praveen C.
full_name: Ashok, Praveen C.
last_name: Ashok
- first_name: Bavishna B.
full_name: Praveen, Bavishna B.
last_name: Praveen
- first_name: Kishan
full_name: Dholakia, Kishan
last_name: Dholakia
- first_name: Jean-Marie
full_name: Tarascon, Jean-Marie
last_name: Tarascon
- first_name: Peter G.
full_name: Bruce, Peter G.
last_name: Bruce
citation:
ama: Johnson L, Li C, Liu Z, et al. The role of LiO2 solubility in O2 reduction
in aprotic solvents and its consequences for Li–O2 batteries. Nature Chemistry.
2014;6(12):1091-1099. doi:10.1038/nchem.2101
apa: Johnson, L., Li, C., Liu, Z., Chen, Y., Freunberger, S. A., Ashok, P. C., …
Bruce, P. G. (2014). The role of LiO2 solubility in O2 reduction in aprotic solvents
and its consequences for Li–O2 batteries. Nature Chemistry. Springer Nature.
https://doi.org/10.1038/nchem.2101
chicago: Johnson, Lee, Chunmei Li, Zheng Liu, Yuhui Chen, Stefan Alexander Freunberger,
Praveen C. Ashok, Bavishna B. Praveen, Kishan Dholakia, Jean-Marie Tarascon, and
Peter G. Bruce. “The Role of LiO2 Solubility in O2 Reduction in Aprotic Solvents
and Its Consequences for Li–O2 Batteries.” Nature Chemistry. Springer Nature,
2014. https://doi.org/10.1038/nchem.2101.
ieee: L. Johnson et al., “The role of LiO2 solubility in O2 reduction in
aprotic solvents and its consequences for Li–O2 batteries,” Nature Chemistry,
vol. 6, no. 12. Springer Nature, pp. 1091–1099, 2014.
ista: Johnson L, Li C, Liu Z, Chen Y, Freunberger SA, Ashok PC, Praveen BB, Dholakia
K, Tarascon J-M, Bruce PG. 2014. The role of LiO2 solubility in O2 reduction in
aprotic solvents and its consequences for Li–O2 batteries. Nature Chemistry. 6(12),
1091–1099.
mla: Johnson, Lee, et al. “The Role of LiO2 Solubility in O2 Reduction in Aprotic
Solvents and Its Consequences for Li–O2 Batteries.” Nature Chemistry, vol.
6, no. 12, Springer Nature, 2014, pp. 1091–99, doi:10.1038/nchem.2101.
short: L. Johnson, C. Li, Z. Liu, Y. Chen, S.A. Freunberger, P.C. Ashok, B.B. Praveen,
K. Dholakia, J.-M. Tarascon, P.G. Bruce, Nature Chemistry 6 (2014) 1091–1099.
date_created: 2020-01-15T12:18:18Z
date_published: 2014-11-10T00:00:00Z
date_updated: 2021-01-12T08:12:55Z
day: '10'
doi: 10.1038/nchem.2101
extern: '1'
fulldoi: https://doi.org/10.1038/nchem.2101
intvolume: ' 6'
issue: '12'
language:
- iso: eng
month: '11'
oa_version: None
page: 1091-1099
publication: Nature Chemistry
publication_identifier:
issn:
- 1755-4330
- 1755-4349
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1038/nchem.2138
status: public
title: The role of LiO2 solubility in O2 reduction in aprotic solvents and its consequences
for Li–O2 batteries
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2014'
...
---
_id: '7361'
abstract:
- lang: eng
text: Bistable switches are fundamental regulatory elements of complex systems,
ranging from electronics to living cells. Designed genetic toggle switches have
been constructed from pairs of natural transcriptional repressors wired to inhibit
one another. The complexity of the engineered regulatory circuits can be increased
using orthogonal transcriptional regulators based on designed DNA-binding domains.
However, a mutual repressor-based toggle switch comprising DNA-binding domains
of transcription-activator-like effectors (TALEs) did not support bistability
in mammalian cells. Here, the challenge of engineering a bistable switch based
on monomeric DNA-binding domains is solved via the introduction of a positive
feedback loop composed of activators based on the same TALE domains as their opposing
repressors and competition for the same DNA operator site. This design introduces
nonlinearity and results in epigenetic bistability. This principle could be used
to employ other monomeric DNA-binding domains such as CRISPR for applications
ranging from reprogramming cells to building digital biological memory.
article_number: '5007'
article_processing_charge: No
article_type: original
author:
- first_name: Tina
full_name: Lebar, Tina
last_name: Lebar
- first_name: Urban
full_name: Bezeljak, Urban
id: 2A58201A-F248-11E8-B48F-1D18A9856A87
last_name: Bezeljak
orcid: 0000-0003-1365-5631
- first_name: Anja
full_name: Golob, Anja
last_name: Golob
- first_name: Miha
full_name: Jerala, Miha
last_name: Jerala
- first_name: Lucija
full_name: Kadunc, Lucija
last_name: Kadunc
- first_name: Boštjan
full_name: Pirš, Boštjan
last_name: Pirš
- first_name: Martin
full_name: Stražar, Martin
last_name: Stražar
- first_name: Dušan
full_name: Vučko, Dušan
last_name: Vučko
- first_name: Uroš
full_name: Zupančič, Uroš
last_name: Zupančič
- first_name: Mojca
full_name: Benčina, Mojca
last_name: Benčina
- first_name: Vida
full_name: Forstnerič, Vida
last_name: Forstnerič
- first_name: Rok
full_name: Gaber, Rok
last_name: Gaber
- first_name: Jan
full_name: Lonzarić, Jan
last_name: Lonzarić
- first_name: Andreja
full_name: Majerle, Andreja
last_name: Majerle
- first_name: Alja
full_name: Oblak, Alja
last_name: Oblak
- first_name: Anže
full_name: Smole, Anže
last_name: Smole
- first_name: Roman
full_name: Jerala, Roman
last_name: Jerala
citation:
ama: Lebar T, Bezeljak U, Golob A, et al. A bistable genetic switch based on designable
DNA-binding domains. Nature Communications. 2014;5(1). doi:10.1038/ncomms6007
apa: Lebar, T., Bezeljak, U., Golob, A., Jerala, M., Kadunc, L., Pirš, B., … Jerala,
R. (2014). A bistable genetic switch based on designable DNA-binding domains.
Nature Communications. Springer Nature. https://doi.org/10.1038/ncomms6007
chicago: Lebar, Tina, Urban Bezeljak, Anja Golob, Miha Jerala, Lucija Kadunc, Boštjan
Pirš, Martin Stražar, et al. “A Bistable Genetic Switch Based on Designable DNA-Binding
Domains.” Nature Communications. Springer Nature, 2014. https://doi.org/10.1038/ncomms6007.
ieee: T. Lebar et al., “A bistable genetic switch based on designable DNA-binding
domains,” Nature Communications, vol. 5, no. 1. Springer Nature, 2014.
ista: Lebar T, Bezeljak U, Golob A, Jerala M, Kadunc L, Pirš B, Stražar M, Vučko
D, Zupančič U, Benčina M, Forstnerič V, Gaber R, Lonzarić J, Majerle A, Oblak
A, Smole A, Jerala R. 2014. A bistable genetic switch based on designable DNA-binding
domains. Nature Communications. 5(1), 5007.
mla: Lebar, Tina, et al. “A Bistable Genetic Switch Based on Designable DNA-Binding
Domains.” Nature Communications, vol. 5, no. 1, 5007, Springer Nature,
2014, doi:10.1038/ncomms6007.
short: T. Lebar, U. Bezeljak, A. Golob, M. Jerala, L. Kadunc, B. Pirš, M. Stražar,
D. Vučko, U. Zupančič, M. Benčina, V. Forstnerič, R. Gaber, J. Lonzarić, A. Majerle,
A. Oblak, A. Smole, R. Jerala, Nature Communications 5 (2014).
date_created: 2020-01-25T15:57:17Z
date_published: 2014-09-29T00:00:00Z
date_updated: 2021-01-12T08:13:15Z
day: '29'
doi: 10.1038/ncomms6007
extern: '1'
external_id:
pmid:
- '25264186'
fulldoi: https://doi.org/10.1038/ncomms6007
intvolume: ' 5'
issue: '1'
language:
- iso: eng
month: '09'
oa_version: None
pmid: 1
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: A bistable genetic switch based on designable DNA-binding domains
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2014'
...
---
_id: '7455'
abstract:
- lang: eng
text: 'The reaction between NiO and (0001)- and ([1\bar102])-oriented Al2O3 single
crystals has been investigated on model experimental systems by using the ReflEXAFS
technique. Depth-sensitive information is obtained by collecting data above and
below the critical angle for total reflection. A systematic protocol for data
analysis, based on the recently developed CARD code, was implemented, and a detailed
description of the reactive systems was obtained. In particular, for ([1\bar102])-oriented
Al2O3, the reaction with NiO is almost complete after heating for 6 h at 1273 K,
and an almost uniform layer of spinel is found below a mixed (NiO + spinel) layer
at the very upmost part of the sample. In the case of the (0001)-oriented Al2O3,
for the same temperature and heating time, the reaction shows a lower advancement
degree and a residual fraction of at least 30% NiO is detected in the ReflEXAFS
spectra. '
article_processing_charge: No
article_type: original
author:
- first_name: Tommaso
full_name: Costanzo, Tommaso
id: D93824F4-D9BA-11E9-BB12-F207E6697425
last_name: Costanzo
orcid: 0000-0001-9732-3815
- first_name: Federico
full_name: Benzi, Federico
last_name: Benzi
- first_name: Paolo
full_name: Ghigna, Paolo
last_name: Ghigna
- first_name: Sonia
full_name: Pin, Sonia
last_name: Pin
- first_name: Giorgio
full_name: Spinolo, Giorgio
last_name: Spinolo
- first_name: Francesco
full_name: d'Acapito, Francesco
last_name: d'Acapito
citation:
ama: Costanzo T, Benzi F, Ghigna P, Pin S, Spinolo G, d’Acapito F. Studying the
surface reaction between NiO and Al2O3viatotal reflection EXAFS (ReflEXAFS). Journal
of Synchrotron Radiation. 2014;21(2):395-400. doi:10.1107/s1600577513031299
apa: Costanzo, T., Benzi, F., Ghigna, P., Pin, S., Spinolo, G., & d’Acapito,
F. (2014). Studying the surface reaction between NiO and Al2O3viatotal reflection
EXAFS (ReflEXAFS). Journal of Synchrotron Radiation. International Union
of Crystallography. https://doi.org/10.1107/s1600577513031299
chicago: Costanzo, Tommaso, Federico Benzi, Paolo Ghigna, Sonia Pin, Giorgio Spinolo,
and Francesco d’Acapito. “Studying the Surface Reaction between NiO and Al2O3viatotal
Reflection EXAFS (ReflEXAFS).” Journal of Synchrotron Radiation. International
Union of Crystallography, 2014. https://doi.org/10.1107/s1600577513031299.
ieee: T. Costanzo, F. Benzi, P. Ghigna, S. Pin, G. Spinolo, and F. d’Acapito, “Studying
the surface reaction between NiO and Al2O3viatotal reflection EXAFS (ReflEXAFS),”
Journal of Synchrotron Radiation, vol. 21, no. 2. International Union of
Crystallography, pp. 395–400, 2014.
ista: Costanzo T, Benzi F, Ghigna P, Pin S, Spinolo G, d’Acapito F. 2014. Studying
the surface reaction between NiO and Al2O3viatotal reflection EXAFS (ReflEXAFS).
Journal of Synchrotron Radiation. 21(2), 395–400.
mla: Costanzo, Tommaso, et al. “Studying the Surface Reaction between NiO and Al2O3viatotal
Reflection EXAFS (ReflEXAFS).” Journal of Synchrotron Radiation, vol. 21,
no. 2, International Union of Crystallography, 2014, pp. 395–400, doi:10.1107/s1600577513031299.
short: T. Costanzo, F. Benzi, P. Ghigna, S. Pin, G. Spinolo, F. d’Acapito, Journal
of Synchrotron Radiation 21 (2014) 395–400.
date_created: 2020-02-05T14:14:48Z
date_published: 2014-01-10T00:00:00Z
date_updated: 2023-02-23T13:08:22Z
day: '10'
doi: 10.1107/s1600577513031299
extern: '1'
fulldoi: https://doi.org/10.1107/s1600577513031299
intvolume: ' 21'
issue: '2'
language:
- iso: eng
month: '01'
oa_version: None
page: 395-400
publication: Journal of Synchrotron Radiation
publication_identifier:
issn:
- 1600-5775
publication_status: published
publisher: International Union of Crystallography
quality_controlled: '1'
status: public
title: Studying the surface reaction between NiO and Al2O3viatotal reflection EXAFS
(ReflEXAFS)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 21
year: '2014'
...
---
_id: '9888'
abstract:
- lang: eng
text: Detailed description of the experimental prodedures, data analyses and additional
statistical analyses of the results.
article_processing_charge: No
author:
- first_name: Stephan
full_name: Wolf, Stephan
last_name: Wolf
- first_name: Dino
full_name: Mcmahon, Dino
last_name: Mcmahon
- first_name: Ka
full_name: Lim, Ka
last_name: Lim
- first_name: Christopher
full_name: Pull, Christopher
id: 3C7F4840-F248-11E8-B48F-1D18A9856A87
last_name: Pull
orcid: 0000-0003-1122-3982
- first_name: Suzanne
full_name: Clark, Suzanne
last_name: Clark
- first_name: Robert
full_name: Paxton, Robert
last_name: Paxton
- first_name: Juliet
full_name: Osborne, Juliet
last_name: Osborne
citation:
ama: Wolf S, Mcmahon D, Lim K, et al. Supporting information. 2014. doi:10.1371/journal.pone.0103989.s003
apa: Wolf, S., Mcmahon, D., Lim, K., Pull, C., Clark, S., Paxton, R., & Osborne,
J. (2014). Supporting information. Public Library of Science. https://doi.org/10.1371/journal.pone.0103989.s003
chicago: Wolf, Stephan, Dino Mcmahon, Ka Lim, Christopher Pull, Suzanne Clark, Robert
Paxton, and Juliet Osborne. “Supporting Information.” Public Library of Science,
2014. https://doi.org/10.1371/journal.pone.0103989.s003.
ieee: S. Wolf et al., “Supporting information.” Public Library of Science,
2014.
ista: Wolf S, Mcmahon D, Lim K, Pull C, Clark S, Paxton R, Osborne J. 2014. Supporting
information, Public Library of Science, 10.1371/journal.pone.0103989.s003.
mla: Wolf, Stephan, et al. Supporting Information. Public Library of Science,
2014, doi:10.1371/journal.pone.0103989.s003.
short: S. Wolf, D. Mcmahon, K. Lim, C. Pull, S. Clark, R. Paxton, J. Osborne, (2014).
date_created: 2021-08-11T14:17:53Z
date_updated: 2025-09-29T11:45:40Z
day: '06'
department:
- _id: SyCr
doi: 10.1371/journal.pone.0103989.s003
fulldoi: https://doi.org/10.1371/journal.pone.0103989.s003
month: '08'
oa_version: Published Version
publisher: Public Library of Science
related_material:
record:
- id: '2086'
relation: used_in_publication
status: public
status: public
title: Supporting information
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2014'
...
---
_id: '9931'
abstract:
- lang: eng
text: Gene duplication is important in evolution, because it provides new raw material
for evolutionary adaptations. Several existing hypotheses about the causes of
duplicate retention and diversification differ in their emphasis on gene dosage,
subfunctionalization, and neofunctionalization. Little experimental data exist
on the relative importance of gene expression changes and changes in coding regions
for the evolution of duplicate genes. Furthermore, we do not know how strongly
the environment could affect this importance. To address these questions, we performed
evolution experiments with the TEM-1 beta lactamase gene in Escherichia coli to
study the initial stages of duplicate gene evolution in the laboratory. We mimicked
tandem duplication by inserting two copies of the TEM-1 gene on the same plasmid.
We then subjected these copies to repeated cycles of mutagenesis and selection
in various environments that contained antibiotics in different combinations and
concentrations. Our experiments showed that gene dosage is the most important
factor in the initial stages of duplicate gene evolution, and overshadows the
importance of point mutations in the coding region.
acknowledgement: We thank the Functional Genomics Center Zurich for its service in
generating sequencing data, M. Ackermann and E. Hayden for helpful discussions,
A. de Visser for comments on earlier versions of this manuscript, and M. Moser for
help with quantitative PCR. This work was supported by Swiss National Science Foundation
(grant 315230–129708), as well as through the YeastX project of SystemsX.ch, and
the University Priority Research Program in Systems Biology at the University of
Zurich. RD acknowledges support from the Forschungskredit program of the University
of Zurich. The authors declare no conflict of interest.
article_processing_charge: No
article_type: original
author:
- first_name: Riddhiman
full_name: Dhar, Riddhiman
last_name: Dhar
- first_name: Tobias
full_name: Bergmiller, Tobias
id: 2C471CFA-F248-11E8-B48F-1D18A9856A87
last_name: Bergmiller
orcid: 0000-0001-5396-4346
- first_name: Andreas
full_name: Wagner, Andreas
last_name: Wagner
citation:
ama: Dhar R, Bergmiller T, Wagner A. Increased gene dosage plays a predominant role
in the initial stages of evolution of duplicate TEM-1 beta lactamase genes. Evolution.
2014;68(6):1775-1791. doi:10.1111/evo.12373
apa: Dhar, R., Bergmiller, T., & Wagner, A. (2014). Increased gene dosage plays
a predominant role in the initial stages of evolution of duplicate TEM-1 beta
lactamase genes. Evolution. Wiley. https://doi.org/10.1111/evo.12373
chicago: Dhar, Riddhiman, Tobias Bergmiller, and Andreas Wagner. “Increased Gene
Dosage Plays a Predominant Role in the Initial Stages of Evolution of Duplicate
TEM-1 Beta Lactamase Genes.” Evolution. Wiley, 2014. https://doi.org/10.1111/evo.12373.
ieee: R. Dhar, T. Bergmiller, and A. Wagner, “Increased gene dosage plays a predominant
role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes,”
Evolution, vol. 68, no. 6. Wiley, pp. 1775–1791, 2014.
ista: Dhar R, Bergmiller T, Wagner A. 2014. Increased gene dosage plays a predominant
role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes.
Evolution. 68(6), 1775–1791.
mla: Dhar, Riddhiman, et al. “Increased Gene Dosage Plays a Predominant Role in
the Initial Stages of Evolution of Duplicate TEM-1 Beta Lactamase Genes.” Evolution,
vol. 68, no. 6, Wiley, 2014, pp. 1775–91, doi:10.1111/evo.12373.
short: R. Dhar, T. Bergmiller, A. Wagner, Evolution 68 (2014) 1775–1791.
date_created: 2021-08-17T09:03:09Z
date_published: 2014-06-03T00:00:00Z
date_updated: 2025-09-29T13:20:48Z
day: '03'
department:
- _id: CaGu
doi: 10.1111/evo.12373
external_id:
isi:
- '000337558900019'
pmid:
- '24495000'
fulldoi: https://doi.org/10.1111/evo.12373
intvolume: ' 68'
isi: 1
issue: '6'
language:
- iso: eng
month: '06'
oa_version: None
page: 1775-1791
pmid: 1
publication: Evolution
publication_identifier:
eissn:
- 1558-5646
issn:
- 0014-3820
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
record:
- id: '9932'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Increased gene dosage plays a predominant role in the initial stages of evolution
of duplicate TEM-1 beta lactamase genes
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 68
year: '2014'
...
---
_id: '9932'
abstract:
- lang: eng
text: Gene duplication is important in evolution, because it provides new raw material
for evolutionary adaptations. Several existing hypotheses about the causes of
duplicate retention and diversification differ in their emphasis on gene dosage,
sub-functionalization, and neo-functionalization. Little experimental data exists
on the relative importance of gene expression changes and changes in coding regions
for the evolution of duplicate genes. Furthermore, we do not know how strongly
the environment could affect this importance. To address these questions, we performed
evolution experiments with the TEM-1 beta lactamase gene in E. coli to study the
initial stages of duplicate gene evolution in the laboratory. We mimicked tandem
duplication by inserting two copies of the TEM-1 gene on the same plasmid. We
then subjected these copies to repeated cycles of mutagenesis and selection in
various environments that contained antibiotics in different combinations and
concentrations. Our experiments showed that gene dosage is the most important
factor in the initial stages of duplicate gene evolution, and overshadows the
importance of point mutations in the coding region.
article_processing_charge: No
author:
- first_name: Riddhiman
full_name: Dhar, Riddhiman
last_name: Dhar
- first_name: Tobias
full_name: Bergmiller, Tobias
id: 2C471CFA-F248-11E8-B48F-1D18A9856A87
last_name: Bergmiller
orcid: 0000-0001-5396-4346
- first_name: Andreas
full_name: Wagner, Andreas
last_name: Wagner
citation:
ama: 'Dhar R, Bergmiller T, Wagner A. Data from: Increased gene dosage plays a predominant
role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes.
2014. doi:10.5061/dryad.jc402'
apa: 'Dhar, R., Bergmiller, T., & Wagner, A. (2014). Data from: Increased gene
dosage plays a predominant role in the initial stages of evolution of duplicate
TEM-1 beta lactamase genes. Dryad. https://doi.org/10.5061/dryad.jc402'
chicago: 'Dhar, Riddhiman, Tobias Bergmiller, and Andreas Wagner. “Data from: Increased
Gene Dosage Plays a Predominant Role in the Initial Stages of Evolution of Duplicate
TEM-1 Beta Lactamase Genes.” Dryad, 2014. https://doi.org/10.5061/dryad.jc402.'
ieee: 'R. Dhar, T. Bergmiller, and A. Wagner, “Data from: Increased gene dosage
plays a predominant role in the initial stages of evolution of duplicate TEM-1
beta lactamase genes.” Dryad, 2014.'
ista: 'Dhar R, Bergmiller T, Wagner A. 2014. Data from: Increased gene dosage plays
a predominant role in the initial stages of evolution of duplicate TEM-1 beta
lactamase genes, Dryad, 10.5061/dryad.jc402.'
mla: 'Dhar, Riddhiman, et al. Data from: Increased Gene Dosage Plays a Predominant
Role in the Initial Stages of Evolution of Duplicate TEM-1 Beta Lactamase Genes.
Dryad, 2014, doi:10.5061/dryad.jc402.'
short: R. Dhar, T. Bergmiller, A. Wagner, (2014).
date_created: 2021-08-17T09:11:40Z
date_published: 2014-01-27T00:00:00Z
date_updated: 2025-09-29T13:20:47Z
day: '27'
department:
- _id: CaGu
doi: 10.5061/dryad.jc402
fulldoi: https://doi.org/10.5061/dryad.jc402
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.jc402
month: '01'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '9931'
relation: used_in_publication
status: public
status: public
title: 'Data from: Increased gene dosage plays a predominant role in the initial stages
of evolution of duplicate TEM-1 beta lactamase genes'
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2014'
...
---
_id: '3263'
abstract:
- lang: eng
text: Adaptation in the retina is thought to optimize the encoding of natural light
signals into sequences of spikes sent to the brain. While adaptive changes in
retinal processing to the variations of the mean luminance level and second-order
stimulus statistics have been documented before, no such measurements have been
performed when higher-order moments of the light distribution change. We therefore
measured the ganglion cell responses in the tiger salamander retina to controlled
changes in the second (contrast), third (skew) and fourth (kurtosis) moments of
the light intensity distribution of spatially uniform temporally independent stimuli.
The skew and kurtosis of the stimuli were chosen to cover the range observed in
natural scenes. We quantified adaptation in ganglion cells by studying linear-nonlinear
models that capture well the retinal encoding properties across all stimuli. We
found that the encoding properties of retinal ganglion cells change only marginally
when higher-order statistics change, compared to the changes observed in response
to the variation in contrast. By analyzing optimal coding in LN-type models, we
showed that neurons can maintain a high information rate without large dynamic
adaptation to changes in skew or kurtosis. This is because, for uncorrelated stimuli,
spatio-temporal summation within the receptive field averages away non-gaussian
aspects of the light intensity distribution.
acknowledgement: "This work was supported by The Israel Science Foundation and The
Human Frontiers Science Program.\r\nWe thank the referees for helping significantly
improve this paper. We also thank Vijay Balasubramanian, Kristina Simmons, and Jason
Prentice for stimulating discussions. GT wishes to thank the faculty and students
of the “Methods in Computational Neuroscience” course at Marine Biological Laboratory,
Woods Hole.\r\n"
article_number: e85841
article_processing_charge: No
author:
- first_name: Gasper
full_name: Tkacik, Gasper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkacik
orcid: 0000-0002-6699-1455
- first_name: Anandamohan
full_name: Ghosh, Anandamohan
last_name: Ghosh
- first_name: Elad
full_name: Schneidman, Elad
last_name: Schneidman
- first_name: Ronen
full_name: Segev, Ronen
last_name: Segev
citation:
ama: Tkačik G, Ghosh A, Schneidman E, Segev R. Adaptation to changes in higher-order
stimulus statistics in the salamander retina. PLoS One. 2014;9(1). doi:10.1371/journal.pone.0085841
apa: Tkačik, G., Ghosh, A., Schneidman, E., & Segev, R. (2014). Adaptation to
changes in higher-order stimulus statistics in the salamander retina. PLoS
One. Public Library of Science. https://doi.org/10.1371/journal.pone.0085841
chicago: Tkačik, Gašper, Anandamohan Ghosh, Elad Schneidman, and Ronen Segev. “Adaptation
to Changes in Higher-Order Stimulus Statistics in the Salamander Retina.” PLoS
One. Public Library of Science, 2014. https://doi.org/10.1371/journal.pone.0085841.
ieee: G. Tkačik, A. Ghosh, E. Schneidman, and R. Segev, “Adaptation to changes in
higher-order stimulus statistics in the salamander retina,” PLoS One, vol.
9, no. 1. Public Library of Science, 2014.
ista: Tkačik G, Ghosh A, Schneidman E, Segev R. 2014. Adaptation to changes in higher-order
stimulus statistics in the salamander retina. PLoS One. 9(1), e85841.
mla: Tkačik, Gašper, et al. “Adaptation to Changes in Higher-Order Stimulus Statistics
in the Salamander Retina.” PLoS One, vol. 9, no. 1, e85841, Public Library
of Science, 2014, doi:10.1371/journal.pone.0085841.
short: G. Tkačik, A. Ghosh, E. Schneidman, R. Segev, PLoS One 9 (2014).
corr_author: '1'
date_created: 2018-12-11T12:02:20Z
date_published: 2014-01-21T00:00:00Z
date_updated: 2025-09-29T11:09:18Z
day: '21'
ddc:
- '570'
department:
- _id: GaTk
doi: 10.1371/journal.pone.0085841
external_id:
isi:
- '000330244500130'
file:
- access_level: open_access
checksum: 1d5816b343abe5eadc3eb419bcece971
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:13:28Z
date_updated: 2020-07-14T12:46:06Z
file_id: '5011'
file_name: IST-2016-432-v1+1_journal.pone.0085841.pdf
file_size: 1568524
relation: main_file
file_date_updated: 2020-07-14T12:46:06Z
fulldoi: https://doi.org/10.1371/journal.pone.0085841
has_accepted_license: '1'
intvolume: ' 9'
isi: 1
issue: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '01'
oa: 1
oa_version: Published Version
publication: PLoS One
publication_status: published
publisher: Public Library of Science
publist_id: '3385'
pubrep_id: '432'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Adaptation to changes in higher-order stimulus statistics in the salamander
retina
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 9
year: '2014'
...
---
_id: '348'
abstract:
- lang: eng
text: "Bi2S3-xTex bulk nanocomposites with crystal domain sizes in the range from
50 nm to 100 nm were obtained from the reaction of Bi2S3 nanorods with Te powder.
The thermoelectric properties of the obtained nanocomposites were analysed in
the temperature range from 0°C to 300°C. We observed how the thermoelectric properties
of the material improved with the annealing temperature, being a spark plasma
sintering process needed to maintain the material nanostructuration while maximising
its electrical properties. Finally thermoelectric dimensionless figures of merit
ZT up to 0.42 were obtained before any charge carrier concentration optimisation.
Copyright © 2014 Inderscience Enterprises Ltd.\r\n\r\n"
article_processing_charge: No
article_type: original
author:
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Umberto
full_name: Anselmi Tamburini, Umberto
last_name: Anselmi Tamburini
- first_name: Oscar
full_name: Durá, Oscar
last_name: Durá
- first_name: Marco
full_name: De La Torre, Marco
last_name: De La Torre
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Cadavid D, Ibáñez M, Anselmi Tamburini U, Durá O, De La Torre M, Cabot A. Thermoelectric
properties of bottom up assembled Bi2S 3-xTex nanocomposites. International
Journal of Nanotechnology. 2014;11(9-11):773-784. doi:10.1504/IJNT.2014.063787
apa: Cadavid, D., Ibáñez, M., Anselmi Tamburini, U., Durá, O., De La Torre, M.,
& Cabot, A. (2014). Thermoelectric properties of bottom up assembled Bi2S
3-xTex nanocomposites. International Journal of Nanotechnology. Inderscience
Enterprises Limited . https://doi.org/10.1504/IJNT.2014.063787
chicago: Cadavid, Doris, Maria Ibáñez, Umberto Anselmi Tamburini, Oscar Durá, Marco
De La Torre, and Andreu Cabot. “Thermoelectric Properties of Bottom up Assembled
Bi2S 3-XTex Nanocomposites.” International Journal of Nanotechnology. Inderscience
Enterprises Limited , 2014. https://doi.org/10.1504/IJNT.2014.063787.
ieee: D. Cadavid, M. Ibáñez, U. Anselmi Tamburini, O. Durá, M. De La Torre, and
A. Cabot, “Thermoelectric properties of bottom up assembled Bi2S 3-xTex nanocomposites,”
International Journal of Nanotechnology, vol. 11, no. 9–11. Inderscience
Enterprises Limited , pp. 773–784, 2014.
ista: Cadavid D, Ibáñez M, Anselmi Tamburini U, Durá O, De La Torre M, Cabot A.
2014. Thermoelectric properties of bottom up assembled Bi2S 3-xTex nanocomposites.
International Journal of Nanotechnology. 11(9–11), 773–784.
mla: Cadavid, Doris, et al. “Thermoelectric Properties of Bottom up Assembled Bi2S
3-XTex Nanocomposites.” International Journal of Nanotechnology, vol. 11,
no. 9–11, Inderscience Enterprises Limited , 2014, pp. 773–84, doi:10.1504/IJNT.2014.063787.
short: D. Cadavid, M. Ibáñez, U. Anselmi Tamburini, O. Durá, M. De La Torre, A.
Cabot, International Journal of Nanotechnology 11 (2014) 773–784.
date_created: 2018-12-11T11:45:57Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2021-01-12T07:43:44Z
day: '01'
doi: 10.1504/IJNT.2014.063787
extern: '1'
fulldoi: https://doi.org/10.1504/IJNT.2014.063787
intvolume: ' 11'
issue: 9-11
language:
- iso: eng
month: '01'
oa_version: None
page: 773 - 784
publication: International Journal of Nanotechnology
publication_status: published
publisher: 'Inderscience Enterprises Limited '
publist_id: '7476'
quality_controlled: '1'
status: public
title: Thermoelectric properties of bottom up assembled Bi2S 3-xTex nanocomposites
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2014'
...
---
_id: '349'
abstract:
- lang: eng
text: 'Thermoelectricity is a key technology with the potential to improve the efficiency
of energy conversion processes, which may strongly benefit from advances in the
field of nanotechnology. Nanostructured materials are very appealing for thermoelectric
applications, but the full development of their potential requires precise control
of their properties at the nanoscale. Bottom-up assembly of nanoparticles provides
access to a three-dimensional composition control at the nanoscale not attainable
in any other technology. In particular, colloidal nanoheterostructures are especially
interesting building blocks for the bottom-up production of functional nanomaterials.
In the present work, we use PbTe@PbS core-shell nanoparticles as building blocks
for the bottom-up production of PbTe-PbS nanocomposites. We used a ligand exchange
strategy and a hot press process to promote the electrical conductivity of the
nanocomposite and to increase its density. These two approaches allowed us to
improve the performance of bottom-up assembled PbTe-PbS bulk nanostructured materials. '
article_processing_charge: No
article_type: original
author:
- first_name: Silvia
full_name: Ortega, Silvia
last_name: Ortega
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: Ortega S, Ibáñez M, Cadavid D, Cabot A. Bottom up processing of PbTe PbS thermoelectric
nanocomposites. International Journal of Nanotechnology. 2014;11(9-11):955-970.
doi:10.1504/IJNT.2014.063802
apa: Ortega, S., Ibáñez, M., Cadavid, D., & Cabot, A. (2014). Bottom up processing
of PbTe PbS thermoelectric nanocomposites. International Journal of Nanotechnology.
Inderscience Enterprises Limited . https://doi.org/10.1504/IJNT.2014.063802
chicago: Ortega, Silvia, Maria Ibáñez, Doris Cadavid, and Andreu Cabot. “Bottom
up Processing of PbTe PbS Thermoelectric Nanocomposites.” International Journal
of Nanotechnology. Inderscience Enterprises Limited , 2014. https://doi.org/10.1504/IJNT.2014.063802.
ieee: S. Ortega, M. Ibáñez, D. Cadavid, and A. Cabot, “Bottom up processing of PbTe
PbS thermoelectric nanocomposites,” International Journal of Nanotechnology,
vol. 11, no. 9–11. Inderscience Enterprises Limited , pp. 955–970, 2014.
ista: Ortega S, Ibáñez M, Cadavid D, Cabot A. 2014. Bottom up processing of PbTe
PbS thermoelectric nanocomposites. International Journal of Nanotechnology. 11(9–11),
955–970.
mla: Ortega, Silvia, et al. “Bottom up Processing of PbTe PbS Thermoelectric Nanocomposites.”
International Journal of Nanotechnology, vol. 11, no. 9–11, Inderscience
Enterprises Limited , 2014, pp. 955–70, doi:10.1504/IJNT.2014.063802.
short: S. Ortega, M. Ibáñez, D. Cadavid, A. Cabot, International Journal of Nanotechnology
11 (2014) 955–970.
date_created: 2018-12-11T11:45:57Z
date_published: 2014-07-21T00:00:00Z
date_updated: 2021-01-12T07:43:48Z
day: '21'
doi: 10.1504/IJNT.2014.063802
extern: '1'
fulldoi: https://doi.org/10.1504/IJNT.2014.063802
intvolume: ' 11'
issue: 9-11
language:
- iso: eng
month: '07'
oa_version: None
page: 955 - 970
publication: International Journal of Nanotechnology
publication_status: published
publisher: 'Inderscience Enterprises Limited '
publist_id: '7477'
quality_controlled: '1'
status: public
title: Bottom up processing of PbTe PbS thermoelectric nanocomposites
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2014'
...
---
_id: '350'
abstract:
- lang: eng
text: Herein, a colloidal synthetic route to produce highly monodisperse Cu2HgGeSe4
(CHGSe) nanoparticles (NPs) is presented in detail. The high yield of the developed
procedure allowed the production of CHGSe NPs at the gram scale. A thorough analysis
of their structural and optical properties is shown. CHGSe NPs displayed poly-tetrahedral
morphology and narrow size distributions with average size in the range of 10–40
nm and size dispersions below 10 %. A 1.6 eV optical band gap was measured by
mean of UV–Vis. By adjusting the cation ratio, an effective control of their electrical
conductivity is achieved. The prepared NPs are used as building blocks for the
production of CHGSe bulk nanostructured materials. The thermoelectric properties
of CHGSe nanomaterials are studied in the temperature range from 300 to 730 K.
CHGSe nanomaterials reached electrical conductivities up to 5 × 104 S m−1, Seebeck
coefficients above 100 μV K−1, and thermal conductivities below 1.0 W m−1 K−1
which translated into thermoelectric figures of merit up to 0.34 at 730 K.
acknowledgement: The research was supported by the European Regional Development Funds
(ERDF, ‘‘FEDER Programa Competitivitat de Catalunya 2007–2013’’).
article_processing_charge: No
article_type: original
author:
- first_name: Wenhua
full_name: Li, Wenhua
last_name: Li
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Doris
full_name: Cadavid, Doris
last_name: Cadavid
- first_name: Reza
full_name: Zamani, Reza
last_name: Zamani
- first_name: Javier
full_name: Rubio Garcia, Javier
last_name: Rubio Garcia
- first_name: Stéphane
full_name: Gorsse, Stéphane
last_name: Gorsse
- first_name: Joan
full_name: Morante, Joan
last_name: Morante
- first_name: Jordi
full_name: Arbiol, Jordi
last_name: Arbiol
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: 'Li W, Ibáñez M, Cadavid D, et al. Colloidal synthesis and functional properties
of quaternary Cu based semiconductors: Cu2HgGeSe4. Journal of Nanoparticle
Research. 2014;16(3). doi:10.1007/s11051-014-2297-2'
apa: 'Li, W., Ibáñez, M., Cadavid, D., Zamani, R., Rubio Garcia, J., Gorsse, S.,
… Cabot, A. (2014). Colloidal synthesis and functional properties of quaternary
Cu based semiconductors: Cu2HgGeSe4. Journal of Nanoparticle Research.
Kluwer. https://doi.org/10.1007/s11051-014-2297-2'
chicago: 'Li, Wenhua, Maria Ibáñez, Doris Cadavid, Reza Zamani, Javier Rubio Garcia,
Stéphane Gorsse, Joan Morante, Jordi Arbiol, and Andreu Cabot. “Colloidal Synthesis
and Functional Properties of Quaternary Cu Based Semiconductors: Cu2HgGeSe4.”
Journal of Nanoparticle Research. Kluwer, 2014. https://doi.org/10.1007/s11051-014-2297-2.'
ieee: 'W. Li et al., “Colloidal synthesis and functional properties of quaternary
Cu based semiconductors: Cu2HgGeSe4,” Journal of Nanoparticle Research,
vol. 16, no. 3. Kluwer, 2014.'
ista: 'Li W, Ibáñez M, Cadavid D, Zamani R, Rubio Garcia J, Gorsse S, Morante J,
Arbiol J, Cabot A. 2014. Colloidal synthesis and functional properties of quaternary
Cu based semiconductors: Cu2HgGeSe4. Journal of Nanoparticle Research. 16(3).'
mla: 'Li, Wenhua, et al. “Colloidal Synthesis and Functional Properties of Quaternary
Cu Based Semiconductors: Cu2HgGeSe4.” Journal of Nanoparticle Research,
vol. 16, no. 3, Kluwer, 2014, doi:10.1007/s11051-014-2297-2.'
short: W. Li, M. Ibáñez, D. Cadavid, R. Zamani, J. Rubio Garcia, S. Gorsse, J. Morante,
J. Arbiol, A. Cabot, Journal of Nanoparticle Research 16 (2014).
date_created: 2018-12-11T11:45:58Z
date_published: 2014-02-18T00:00:00Z
date_updated: 2021-01-12T07:43:53Z
day: '18'
doi: 10.1007/s11051-014-2297-2
extern: '1'
fulldoi: https://doi.org/10.1007/s11051-014-2297-2
intvolume: ' 16'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://hal.archives-ouvertes.fr/hal-00959322/
month: '02'
oa: 1
oa_version: Submitted Version
publication: Journal of Nanoparticle Research
publication_status: published
publisher: Kluwer
publist_id: '7478'
quality_controlled: '1'
status: public
title: 'Colloidal synthesis and functional properties of quaternary Cu based semiconductors:
Cu2HgGeSe4'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2014'
...
---
_id: '358'
abstract:
- lang: eng
text: Monodispersed Pt3Sn nanoparticles were prepared through a mild thermal synthesis
in the presence of surfactants. The performance of Pt3Sn for the electrooxidation
of ethanol and adsorbed carbon monoxide (COad) in acid medium was studied by a
combination of electrochemical and insitu spectroscopic methods, namely, infrared
reflection absorption spectroscopy and differential electrochemical mass spectrometry
(DEMS), and the results were compared to those obtained with the use of Pt black.
The formation of the Pt3Sn solid solution promoted the oxidation of COad at less-positive
potentials than those required for Pt black. Also, the electrooxidation of ethanol,
especially at lower potentials, was more favorable with Pt3Sn, as deduced from
the higher faradaic currents recorded during the ethanol oxidation reaction (EOR).
However, the distribution of products as deduced by DEMS analysis suggested that
the formation of C1 products, CO2 inclusive, is less significant on Pt3Sn than
on Pt. In fact, the higher faradaic current recorded with the former catalyst
can be attributed to the greater amounts of acetaldehyde and acetic acid formed.
After the EOR, the surface of both Pt and Pt3Sn remained covered by ethanol adsorbates.
Whereas C2 fragments were the main adsorbates at the surface of Pt3Sn after the
EOR, both C1 and C2 species remained adsorbed at Pt black.
acknowledgement: The Spanish Ministry of Science and Innovation (Project ENE2010–15381)
and the CSIC (Project 201080E116) are acknowledged for financial support.
article_processing_charge: No
article_type: original
author:
- first_name: Tirma
full_name: Herranz, Tirma
last_name: Herranz
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: José
full_name: Gómez De La Fuente, José
last_name: Gómez De La Fuente
- first_name: Francisco
full_name: Pérez Alonso, Francisco
last_name: Pérez Alonso
- first_name: Miguel
full_name: Peña, Miguel
last_name: Peña
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
- first_name: Sergio
full_name: Rojas, Sergio
last_name: Rojas
citation:
ama: Herranz T, Ibáñez M, Gómez De La Fuente J, et al. In situ study of ethanol
electrooxidation on monodispersed Pt inf 3 inf Sn nanoparticles. ChemElectroChem.
2014;1(5):885-895. doi:10.1002/celc.201300254
apa: Herranz, T., Ibáñez, M., Gómez De La Fuente, J., Pérez Alonso, F., Peña, M.,
Cabot, A., & Rojas, S. (2014). In situ study of ethanol electrooxidation on
monodispersed Pt inf 3 inf Sn nanoparticles. ChemElectroChem. Wiley-Blackwell.
https://doi.org/10.1002/celc.201300254
chicago: Herranz, Tirma, Maria Ibáñez, José Gómez De La Fuente, Francisco Pérez
Alonso, Miguel Peña, Andreu Cabot, and Sergio Rojas. “In Situ Study of Ethanol
Electrooxidation on Monodispersed Pt Inf 3 Inf Sn Nanoparticles.” ChemElectroChem.
Wiley-Blackwell, 2014. https://doi.org/10.1002/celc.201300254.
ieee: T. Herranz et al., “In situ study of ethanol electrooxidation on monodispersed
Pt inf 3 inf Sn nanoparticles,” ChemElectroChem, vol. 1, no. 5. Wiley-Blackwell,
pp. 885–895, 2014.
ista: Herranz T, Ibáñez M, Gómez De La Fuente J, Pérez Alonso F, Peña M, Cabot A,
Rojas S. 2014. In situ study of ethanol electrooxidation on monodispersed Pt inf
3 inf Sn nanoparticles. ChemElectroChem. 1(5), 885–895.
mla: Herranz, Tirma, et al. “In Situ Study of Ethanol Electrooxidation on Monodispersed
Pt Inf 3 Inf Sn Nanoparticles.” ChemElectroChem, vol. 1, no. 5, Wiley-Blackwell,
2014, pp. 885–95, doi:10.1002/celc.201300254.
short: T. Herranz, M. Ibáñez, J. Gómez De La Fuente, F. Pérez Alonso, M. Peña, A.
Cabot, S. Rojas, ChemElectroChem 1 (2014) 885–895.
date_created: 2018-12-11T11:46:00Z
date_published: 2014-03-03T00:00:00Z
date_updated: 2021-01-12T07:44:26Z
day: '03'
doi: 10.1002/celc.201300254
extern: '1'
fulldoi: https://doi.org/10.1002/celc.201300254
intvolume: ' 1'
issue: '5'
language:
- iso: eng
month: '03'
oa_version: None
page: 885 - 895
publication: ChemElectroChem
publication_status: published
publisher: Wiley-Blackwell
publist_id: '7474'
quality_controlled: '1'
status: public
title: In situ study of ethanol electrooxidation on monodispersed Pt inf 3 inf Sn
nanoparticles
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 1
year: '2014'
...
---
_id: '359'
abstract:
- lang: eng
text: An appropriate way of realizing property nanoengineering in complex quaternary
chalcogenide nanocrystals is presented for Cu2Cd xSnSey(CCTSe) polypods. The pivotal
role of the polarity in determining morphology, growth, and the polytypic branching
mechanism is demonstrated. Polarity is considered to be responsible for the formation
of an initial seed that takes the form of a tetrahedron with four cation-polar
facets. Size and shape confinement of the intermediate pentatetrahedral seed is
also attributed to polarity, as their external facets are anion-polar. The final
polypod extensions also branch out as a result of a cation-polarity-driven mechanism.
Aberration-corrected scanning transmission electron microscopy is used to identify
stannite cation ordering, while ab initio studies are used to show the influence
of cation ordering/distortion, stoichiometry, and polytypic structural change
on the electronic band structure.
acknowledgement: The research leading to these results has received funding from the
European Union Seventh Framework Programme under grant agreement 312483-ESTEEM2
(Integrated Infrastructure InitiativeI3) for using advance electron microscopes
at ER-C Jülich. J.A. acknowledges the funding from the Spanish MICINN project MAT2010-15138
(COPEON) and Generalitat de Catalunya 2009 SGR 770. R.R.Z. acknowledges the former.
The authors would also like to thank the TEM facilities in Serveis Cientificotecnics
from Universitat de Barcelona. N.G.-C. acknowledges the Spanish MECD for her Ph.D.
grant in the FPU program. JR and RZ acknowledge funding from MULTICAT and NANOENESTO
projects.
article_processing_charge: No
article_type: original
author:
- first_name: Reza
full_name: Zamani, Reza
last_name: Zamani
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Martina
full_name: Luysberg, Martina
last_name: Luysberg
- first_name: Nuria
full_name: García Castelló, Nuria
last_name: García Castelló
- first_name: Lothar
full_name: Houben, Lothar
last_name: Houben
- first_name: Joan
full_name: Prades, Joan
last_name: Prades
- first_name: Vincenzo
full_name: Grillo, Vincenzo
last_name: Grillo
- first_name: Rafal
full_name: Dunin Borkowski, Rafal
last_name: Dunin Borkowski
- first_name: Joan
full_name: Morante, Joan
last_name: Morante
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
- first_name: Jordi
full_name: Arbiol, Jordi
last_name: Arbiol
citation:
ama: Zamani R, Ibáñez M, Luysberg M, et al. Polarity-driven polytypic branching
in Cu-based quaternary chalcogenide nanostructures. ACS Nano. 2014;8(3):2290-2301.
doi:10.1021/nn405747h
apa: Zamani, R., Ibáñez, M., Luysberg, M., García Castelló, N., Houben, L., Prades,
J., … Arbiol, J. (2014). Polarity-driven polytypic branching in Cu-based quaternary
chalcogenide nanostructures. ACS Nano. American Chemical Society. https://doi.org/10.1021/nn405747h
chicago: Zamani, Reza, Maria Ibáñez, Martina Luysberg, Nuria García Castelló, Lothar
Houben, Joan Prades, Vincenzo Grillo, et al. “Polarity-Driven Polytypic Branching
in Cu-Based Quaternary Chalcogenide Nanostructures.” ACS Nano. American
Chemical Society, 2014. https://doi.org/10.1021/nn405747h.
ieee: R. Zamani et al., “Polarity-driven polytypic branching in Cu-based
quaternary chalcogenide nanostructures,” ACS Nano, vol. 8, no. 3. American
Chemical Society, pp. 2290–2301, 2014.
ista: Zamani R, Ibáñez M, Luysberg M, García Castelló N, Houben L, Prades J, Grillo
V, Dunin Borkowski R, Morante J, Cabot A, Arbiol J. 2014. Polarity-driven polytypic
branching in Cu-based quaternary chalcogenide nanostructures. ACS Nano. 8(3),
2290–2301.
mla: Zamani, Reza, et al. “Polarity-Driven Polytypic Branching in Cu-Based Quaternary
Chalcogenide Nanostructures.” ACS Nano, vol. 8, no. 3, American Chemical
Society, 2014, pp. 2290–301, doi:10.1021/nn405747h.
short: R. Zamani, M. Ibáñez, M. Luysberg, N. García Castelló, L. Houben, J. Prades,
V. Grillo, R. Dunin Borkowski, J. Morante, A. Cabot, J. Arbiol, ACS Nano 8 (2014)
2290–2301.
date_created: 2018-12-11T11:46:01Z
date_published: 2014-03-25T00:00:00Z
date_updated: 2021-01-12T07:44:30Z
day: '25'
doi: 10.1021/nn405747h
extern: '1'
fulldoi: https://doi.org/10.1021/nn405747h
intvolume: ' 8'
issue: '3'
language:
- iso: eng
month: '03'
oa_version: None
page: 2290 - 2301
publication: ACS Nano
publication_status: published
publisher: American Chemical Society
publist_id: '7475'
quality_controlled: '1'
status: public
title: Polarity-driven polytypic branching in Cu-based quaternary chalcogenide nanostructures
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2014'
...
---
_id: '1733'
abstract:
- lang: eng
text: The classical (boolean) notion of refinement for behavioral interfaces of
system components is the alternating refinement preorder. In this paper, we define
a distance for interfaces, called interface simulation distance. It makes the
alternating refinement preorder quantitative by, intuitively, tolerating errors
(while counting them) in the alternating simulation game. We show that the interface
simulation distance satisfies the triangle inequality, that the distance between
two interfaces does not increase under parallel composition with a third interface,
that the distance between two interfaces can be bounded from above and below by
distances between abstractions of the two interfaces, and how to synthesize an
interface from incompatible requirements. We illustrate the framework, and the
properties of the distances under composition of interfaces, with two case studies.
article_processing_charge: No
arxiv: 1
author:
- first_name: Pavol
full_name: Cerny, Pavol
last_name: Cerny
- first_name: Martin
full_name: Chmelik, Martin
id: 3624234E-F248-11E8-B48F-1D18A9856A87
last_name: Chmelik
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Arjun
full_name: Radhakrishna, Arjun
id: 3B51CAC4-F248-11E8-B48F-1D18A9856A87
last_name: Radhakrishna
citation:
ama: Cerny P, Chmelik M, Henzinger TA, Radhakrishna A. Interface simulation distances.
Theoretical Computer Science. 2014;560(3):348-363. doi:10.1016/j.tcs.2014.08.019
apa: Cerny, P., Chmelik, M., Henzinger, T. A., & Radhakrishna, A. (2014). Interface
simulation distances. Theoretical Computer Science. Elsevier. https://doi.org/10.1016/j.tcs.2014.08.019
chicago: Cerny, Pavol, Martin Chmelik, Thomas A Henzinger, and Arjun Radhakrishna.
“Interface Simulation Distances.” Theoretical Computer Science. Elsevier,
2014. https://doi.org/10.1016/j.tcs.2014.08.019.
ieee: P. Cerny, M. Chmelik, T. A. Henzinger, and A. Radhakrishna, “Interface simulation
distances,” Theoretical Computer Science, vol. 560, no. 3. Elsevier, pp.
348–363, 2014.
ista: Cerny P, Chmelik M, Henzinger TA, Radhakrishna A. 2014. Interface simulation
distances. Theoretical Computer Science. 560(3), 348–363.
mla: Cerny, Pavol, et al. “Interface Simulation Distances.” Theoretical Computer
Science, vol. 560, no. 3, Elsevier, 2014, pp. 348–63, doi:10.1016/j.tcs.2014.08.019.
short: P. Cerny, M. Chmelik, T.A. Henzinger, A. Radhakrishna, Theoretical Computer
Science 560 (2014) 348–363.
corr_author: '1'
date_created: 2018-12-11T11:53:43Z
date_published: 2014-12-04T00:00:00Z
date_updated: 2025-09-29T13:14:25Z
day: '04'
department:
- _id: ToHe
- _id: KrCh
doi: 10.1016/j.tcs.2014.08.019
ec_funded: 1
external_id:
arxiv:
- '1210.2450'
isi:
- '000347601300009'
fulldoi: https://doi.org/10.1016/j.tcs.2014.08.019
intvolume: ' 560'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1210.2450
month: '12'
oa: 1
oa_version: Submitted Version
page: 348 - 363
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '267989'
name: Quantitative Reactive Modeling
- _id: 25F5A88A-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11402-N23
name: Moderne Concurrency Paradigms
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
name: Microsoft Research Faculty Fellowship
publication: Theoretical Computer Science
publication_status: published
publisher: Elsevier
publist_id: '5392'
quality_controlled: '1'
related_material:
record:
- id: '2916'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Interface simulation distances
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 560
year: '2014'
...
---
_id: '17614'
abstract:
- lang: eng
text: The first generation of stars produces a background of Lyman–Werner (LW) radiation
which can photodissociate molecular hydrogen, increasing the mass of dark matter
haloes required to host star formation. Previous studies have determined the critical
mass required for efficient molecular cooling with a constant LW background. However,
the true background is expected to increase rapidly at early times. Neglecting
this evolution could underestimate star formation in small haloes that may have
started to cool in the past when the LW intensity was much lower. Background evolution
is a large source of uncertainty in pre-reionization predictions of the cosmological
21cm signal, which can be observed with future radio telescopes. To address this,
we perform zero-dimensional one-zone calculations that follow the density, chemical
abundances, and temperature of gas in the central regions of dark matter haloes,
including hierarchical growth and an evolving LW background. We begin by studying
the physics of haloes subjected to a background that increases exponentially with
redshift. We find that when the intensity increases more slowly than JLW(z)∝10−z/5,
cooling in the past is a relatively small effect. We then self-consistently compute
the cosmological LW background over z = 15–50 and find that cooling in the past
due to an evolving background has a modest impact. Finally, we compare these results
to three-dimensional hydrodynamical cosmological simulations with varying LW histories.
While only a small number of haloes were simulated, the results are consistent
with our one-zone calculations.
article_processing_charge: No
article_type: original
author:
- first_name: Eli
full_name: Visbal, Eli
last_name: Visbal
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Bryan
full_name: Terrazas, Bryan
last_name: Terrazas
- first_name: Greg L.
full_name: Bryan, Greg L.
last_name: Bryan
- first_name: Rennan
full_name: Barkana, Rennan
last_name: Barkana
citation:
ama: Visbal E, Haiman Z, Terrazas B, Bryan GL, Barkana R. High-redshift star formation
in a time-dependent Lyman–Werner background. Monthly Notices of the Royal Astronomical
Society. 2014;445(1):107-114. doi:10.1093/mnras/stu1710
apa: Visbal, E., Haiman, Z., Terrazas, B., Bryan, G. L., & Barkana, R. (2014).
High-redshift star formation in a time-dependent Lyman–Werner background. Monthly
Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stu1710
chicago: Visbal, Eli, Zoltán Haiman, Bryan Terrazas, Greg L. Bryan, and Rennan Barkana.
“High-Redshift Star Formation in a Time-Dependent Lyman–Werner Background.” Monthly
Notices of the Royal Astronomical Society. Oxford University Press, 2014.
https://doi.org/10.1093/mnras/stu1710.
ieee: E. Visbal, Z. Haiman, B. Terrazas, G. L. Bryan, and R. Barkana, “High-redshift
star formation in a time-dependent Lyman–Werner background,” Monthly Notices
of the Royal Astronomical Society, vol. 445, no. 1. Oxford University Press,
pp. 107–114, 2014.
ista: Visbal E, Haiman Z, Terrazas B, Bryan GL, Barkana R. 2014. High-redshift star
formation in a time-dependent Lyman–Werner background. Monthly Notices of the
Royal Astronomical Society. 445(1), 107–114.
mla: Visbal, Eli, et al. “High-Redshift Star Formation in a Time-Dependent Lyman–Werner
Background.” Monthly Notices of the Royal Astronomical Society, vol. 445,
no. 1, Oxford University Press, 2014, pp. 107–14, doi:10.1093/mnras/stu1710.
short: E. Visbal, Z. Haiman, B. Terrazas, G.L. Bryan, R. Barkana, Monthly Notices
of the Royal Astronomical Society 445 (2014) 107–114.
date_created: 2024-09-05T13:30:21Z
date_published: 2014-09-22T00:00:00Z
date_updated: 2024-09-24T07:43:44Z
day: '22'
doi: 10.1093/mnras/stu1710
extern: '1'
fulldoi: https://doi.org/10.1093/mnras/stu1710
intvolume: ' 445'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1093/mnras/stu1710
month: '09'
oa: 1
oa_version: Published Version
page: 107-114
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
issn:
- 0035-8711
- 1365-2966
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: High-redshift star formation in a time-dependent Lyman–Werner background
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 445
year: '2014'
...
---
_id: '17617'
abstract:
- lang: eng
text: Most standard descriptions of Type II migration state that massive, gap-opening
planets must migrate at the viscous drift rate. This is based on the idea that
the disk is separated into an inner and outer region and gas is considered unable
to cross the gap. In fact, gas easily crosses the gap on horseshoe orbits, nullifying
this necessary premise which would set the migration rate. In this work, it is
demonstrated using highly accurate numerical calculations that the actual migration
rate is dependent on disk and planet parameters, and can be significantly larger
or smaller than the viscous drift rate. In the limiting case of a disk much more
massive than the secondary, the migration rate saturates to a constant that is
sensitive to disk parameters and is not necessarily of the order of the viscous
rate. In the opposite limit of a low-mass disk, the migration rate decreases linearly
with disk mass. Steady-state solutions in the low disk mass limit show no pile-up
outside the secondary's orbit, and no corresponding drainage of the inner disk.
article_number: L10
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Paul C.
full_name: Duffell, Paul C.
last_name: Duffell
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Andrew I.
full_name: MacFadyen, Andrew I.
last_name: MacFadyen
- first_name: Daniel J.
full_name: D'Orazio, Daniel J.
last_name: D'Orazio
- first_name: Brian D.
full_name: Farris, Brian D.
last_name: Farris
citation:
ama: Duffell PC, Haiman Z, MacFadyen AI, D’Orazio DJ, Farris BD. The migration of
gap-opening planets is not locked to viscous disk evolution. The Astrophysical
Journal. 2014;792(1). doi:10.1088/2041-8205/792/1/l10
apa: Duffell, P. C., Haiman, Z., MacFadyen, A. I., D’Orazio, D. J., & Farris,
B. D. (2014). The migration of gap-opening planets is not locked to viscous disk
evolution. The Astrophysical Journal. American Astronomical Society. https://doi.org/10.1088/2041-8205/792/1/l10
chicago: Duffell, Paul C., Zoltán Haiman, Andrew I. MacFadyen, Daniel J. D’Orazio,
and Brian D. Farris. “The Migration of Gap-Opening Planets Is Not Locked to Viscous
Disk Evolution.” The Astrophysical Journal. American Astronomical Society,
2014. https://doi.org/10.1088/2041-8205/792/1/l10.
ieee: P. C. Duffell, Z. Haiman, A. I. MacFadyen, D. J. D’Orazio, and B. D. Farris,
“The migration of gap-opening planets is not locked to viscous disk evolution,”
The Astrophysical Journal, vol. 792, no. 1. American Astronomical Society,
2014.
ista: Duffell PC, Haiman Z, MacFadyen AI, D’Orazio DJ, Farris BD. 2014. The migration
of gap-opening planets is not locked to viscous disk evolution. The Astrophysical
Journal. 792(1), L10.
mla: Duffell, Paul C., et al. “The Migration of Gap-Opening Planets Is Not Locked
to Viscous Disk Evolution.” The Astrophysical Journal, vol. 792, no. 1,
L10, American Astronomical Society, 2014, doi:10.1088/2041-8205/792/1/l10.
short: P.C. Duffell, Z. Haiman, A.I. MacFadyen, D.J. D’Orazio, B.D. Farris, The
Astrophysical Journal 792 (2014).
date_created: 2024-09-05T13:34:52Z
date_published: 2014-08-14T00:00:00Z
date_updated: 2024-09-24T08:08:57Z
day: '14'
doi: 10.1088/2041-8205/792/1/l10
extern: '1'
external_id:
arxiv:
- '1405.3711'
fulldoi: https://doi.org/10.1088/2041-8205/792/1/l10
intvolume: ' 792'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1405.3711'
month: '08'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
issn:
- 2041-8213
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: The migration of gap-opening planets is not locked to viscous disk evolution
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 792
year: '2014'
...
---
_id: '17620'
abstract:
- lang: eng
text: We present the results of two-dimensional (2D) hydrodynamical simulations
of circumbinary disk accretion using the finite-volume code DISCO. This code solves
the 2D viscous Navier–Stokes equations on a high-resolution moving mesh which
shears with the fluid flow, greatly reducing advection errors in comparison with
a fixed grid. We perform a series of simulations for binary mass ratios in the
range 0.026 ⩽ q ⩽ 1.0, each lasting longer than a viscous time so that we reach
a quasi-steady accretion state. In each case, we find that gas is efficiently
stripped from the inner edge of the circumbinary disk and enters the cavity along
accretion streams, which feed persistent "mini disks" surrounding each black hole.
We find that for q ≳ 0.1, the binary excites eccentricity in the inner region
of the circumbinary disk, creating an overdense lump which gives rise to enhanced
periodicity in the accretion rate. The dependence of the periodicity on mass ratio
may provide a method for observationally inferring mass ratios from measurements
of the accretion rate. We also find that for all mass ratios studied, the magnitude
of the accretion onto the secondary is sufficient to drive the binary toward larger
mass ratio. This suggests a mechanism for biasing mass-ratio distributions toward
equal mass.
article_number: '134'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Brian D.
full_name: Farris, Brian D.
last_name: Farris
- first_name: Paul
full_name: Duffell, Paul
last_name: Duffell
- first_name: Andrew I.
full_name: MacFadyen, Andrew I.
last_name: MacFadyen
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: 'Farris BD, Duffell P, MacFadyen AI, Haiman Z. Binary black hole accretion
from a circumbinary disk: Gas dynamics inside the central cavity. The Astrophysical
Journal. 2014;783(2). doi:10.1088/0004-637x/783/2/134'
apa: 'Farris, B. D., Duffell, P., MacFadyen, A. I., & Haiman, Z. (2014). Binary
black hole accretion from a circumbinary disk: Gas dynamics inside the central
cavity. The Astrophysical Journal. American Astronomical Society. https://doi.org/10.1088/0004-637x/783/2/134'
chicago: 'Farris, Brian D., Paul Duffell, Andrew I. MacFadyen, and Zoltán Haiman.
“Binary Black Hole Accretion from a Circumbinary Disk: Gas Dynamics inside the
Central Cavity.” The Astrophysical Journal. American Astronomical Society,
2014. https://doi.org/10.1088/0004-637x/783/2/134.'
ieee: 'B. D. Farris, P. Duffell, A. I. MacFadyen, and Z. Haiman, “Binary black hole
accretion from a circumbinary disk: Gas dynamics inside the central cavity,” The
Astrophysical Journal, vol. 783, no. 2. American Astronomical Society, 2014.'
ista: 'Farris BD, Duffell P, MacFadyen AI, Haiman Z. 2014. Binary black hole accretion
from a circumbinary disk: Gas dynamics inside the central cavity. The Astrophysical
Journal. 783(2), 134.'
mla: 'Farris, Brian D., et al. “Binary Black Hole Accretion from a Circumbinary
Disk: Gas Dynamics inside the Central Cavity.” The Astrophysical Journal,
vol. 783, no. 2, 134, American Astronomical Society, 2014, doi:10.1088/0004-637x/783/2/134.'
short: B.D. Farris, P. Duffell, A.I. MacFadyen, Z. Haiman, The Astrophysical Journal
783 (2014).
date_created: 2024-09-05T13:48:18Z
date_published: 2014-02-24T00:00:00Z
date_updated: 2024-09-24T08:23:39Z
day: '24'
doi: 10.1088/0004-637x/783/2/134
extern: '1'
external_id:
arxiv:
- '1310.0492'
fulldoi: https://doi.org/10.1088/0004-637x/783/2/134
intvolume: ' 783'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1310.0492'
month: '02'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal
publication_identifier:
issn:
- 0004-637X
- 1538-4357
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Binary black hole accretion from a circumbinary disk: Gas dynamics inside
the central cavity'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 783
year: '2014'
...
---
_id: '17623'
abstract:
- lang: eng
text: 'Residual errors in shear measurements, after corrections for instrument systematics
and atmospheric effects, can impact cosmological parameters derived from weak
lensing observations. Here we combine convergence maps from our suite of ray-tracing
simulations with random realizations of spurious shear. This allows us to quantify
the errors and biases of the triplet (Ωm,w,σ8) derived from the power spectrum
(PS), as well as from three different sets of non-Gaussian statistics of the lensing
convergence field: Minkowski functionals (MF), low--order moments (LM), and peak
counts (PK). Our main results are: (i) We find an order of magnitude smaller biases
from the PS than in previous work. (ii) The PS and LM yield biases much smaller
than the morphological statistics (MF, PK). (iii) For strictly Gaussian spurious
shear with integrated amplitude as low as its current estimate of σ2sys≈10−7,
biases from the PS and LM would be unimportant even for a survey with the statistical
power of LSST. However, we find that for surveys larger than ≈100 deg2, non-Gaussianity
in the noise (not included in our analysis) will likely be important and must
be quantified to assess the biases. (iv) The morphological statistics (MF,PK)
introduce important biases even for Gaussian noise, which must be corrected in
large surveys. The biases are in different directions in (Ωm,w,σ8) parameter space,
allowing self-calibration by combining multiple statistics. Our results warrant
follow-up studies with more extensive lensing simulations and more accurate spurious
shear estimates.'
article_number: '123015'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Andrea
full_name: Petri, Andrea
last_name: Petri
- first_name: Morgan
full_name: May, Morgan
last_name: May
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
- first_name: Jan M.
full_name: Kratochvil, Jan M.
last_name: Kratochvil
citation:
ama: Petri A, May M, Haiman Z, Kratochvil JM. Impact of spurious shear on cosmological
parameter estimates from weak lensing observables. Physical Review D. 2014;90(12).
doi:10.1103/physrevd.90.123015
apa: Petri, A., May, M., Haiman, Z., & Kratochvil, J. M. (2014). Impact of spurious
shear on cosmological parameter estimates from weak lensing observables. Physical
Review D. American Physical Society. https://doi.org/10.1103/physrevd.90.123015
chicago: Petri, Andrea, Morgan May, Zoltán Haiman, and Jan M. Kratochvil. “Impact
of Spurious Shear on Cosmological Parameter Estimates from Weak Lensing Observables.”
Physical Review D. American Physical Society, 2014. https://doi.org/10.1103/physrevd.90.123015.
ieee: A. Petri, M. May, Z. Haiman, and J. M. Kratochvil, “Impact of spurious shear
on cosmological parameter estimates from weak lensing observables,” Physical
Review D, vol. 90, no. 12. American Physical Society, 2014.
ista: Petri A, May M, Haiman Z, Kratochvil JM. 2014. Impact of spurious shear on
cosmological parameter estimates from weak lensing observables. Physical Review
D. 90(12), 123015.
mla: Petri, Andrea, et al. “Impact of Spurious Shear on Cosmological Parameter Estimates
from Weak Lensing Observables.” Physical Review D, vol. 90, no. 12, 123015,
American Physical Society, 2014, doi:10.1103/physrevd.90.123015.
short: A. Petri, M. May, Z. Haiman, J.M. Kratochvil, Physical Review D 90 (2014).
date_created: 2024-09-05T13:52:25Z
date_published: 2014-12-30T00:00:00Z
date_updated: 2024-09-24T08:39:41Z
day: '30'
doi: 10.1103/physrevd.90.123015
extern: '1'
external_id:
arxiv:
- '1409.5130'
fulldoi: https://doi.org/10.1103/physrevd.90.123015
intvolume: ' 90'
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1409.5130'
month: '12'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
issn:
- 1550-7998
- 1550-2368
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Impact of spurious shear on cosmological parameter estimates from weak lensing
observables
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 90
year: '2014'
...
---
_id: '17625'
abstract:
- lang: eng
text: We present the results of 2D, moving mesh, viscous hydrodynamical simulations
of accretion on to merging supermassive black hole (SMBH) binaries. We include
viscous heating, shock heating, and radiative cooling, and simulate the transition
from the ‘pre-decoupling’ epoch, where the inspiral time-scale is longer than
the viscous time-scale, to the ‘post-decoupling’ epoch, where the inspiral time-scale
is shorter than the viscous time-scale. We find that there is no abrupt halt to
the accretion at decoupling, but rather the accretion shows a slow decay, with
significant accretion well after the expected decoupling. Moreover, we find that
the luminosity in X-rays is significantly higher prior to the merger, as orbital
energy from the SMBH binary is converted to heat via strong shocks inside the
cavity, and radiated away. Following the merger, the cavity refills viscously
and the accretion rate relaxes to the Shakura–Sunyaev value, while the X-ray luminosity
drops as the shocks quickly dissipate.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Brian D.
full_name: Farris, Brian D.
last_name: Farris
- first_name: Paul
full_name: Duffell, Paul
last_name: Duffell
- first_name: Andrew I.
full_name: MacFadyen, Andrew I.
last_name: MacFadyen
- first_name: Zoltán
full_name: Haiman, Zoltán
id: 7c006e8c-cc0d-11ee-8322-cb904ef76f36
last_name: Haiman
citation:
ama: 'Farris BD, Duffell P, MacFadyen AI, Haiman Z. Binary black hole accretion
during inspiral and merger. Monthly Notices of the Royal Astronomical Society:
Letters. 2014;447(1):L80-L84. doi:10.1093/mnrasl/slu184'
apa: 'Farris, B. D., Duffell, P., MacFadyen, A. I., & Haiman, Z. (2014). Binary
black hole accretion during inspiral and merger. Monthly Notices of the Royal
Astronomical Society: Letters. Oxford University Press. https://doi.org/10.1093/mnrasl/slu184'
chicago: 'Farris, Brian D., Paul Duffell, Andrew I. MacFadyen, and Zoltán Haiman.
“Binary Black Hole Accretion during Inspiral and Merger.” Monthly Notices of
the Royal Astronomical Society: Letters. Oxford University Press, 2014. https://doi.org/10.1093/mnrasl/slu184.'
ieee: 'B. D. Farris, P. Duffell, A. I. MacFadyen, and Z. Haiman, “Binary black hole
accretion during inspiral and merger,” Monthly Notices of the Royal Astronomical
Society: Letters, vol. 447, no. 1. Oxford University Press, pp. L80–L84, 2014.'
ista: 'Farris BD, Duffell P, MacFadyen AI, Haiman Z. 2014. Binary black hole accretion
during inspiral and merger. Monthly Notices of the Royal Astronomical Society:
Letters. 447(1), L80–L84.'
mla: 'Farris, Brian D., et al. “Binary Black Hole Accretion during Inspiral and
Merger.” Monthly Notices of the Royal Astronomical Society: Letters, vol.
447, no. 1, Oxford University Press, 2014, pp. L80–84, doi:10.1093/mnrasl/slu184.'
short: 'B.D. Farris, P. Duffell, A.I. MacFadyen, Z. Haiman, Monthly Notices of the
Royal Astronomical Society: Letters 447 (2014) L80–L84.'
date_created: 2024-09-05T13:54:34Z
date_published: 2014-12-19T00:00:00Z
date_updated: 2024-09-24T08:50:47Z
day: '19'
doi: 10.1093/mnrasl/slu184
extern: '1'
external_id:
arxiv:
- '1409.5124'
fulldoi: https://doi.org/10.1093/mnrasl/slu184
intvolume: ' 447'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.48550/arXiv.1409.5124'
month: '12'
oa: 1
oa_version: Preprint
page: L80-L84
publication: 'Monthly Notices of the Royal Astronomical Society: Letters'
publication_identifier:
issn:
- 1745-3933
- 1745-3925
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Binary black hole accretion during inspiral and merger
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 447
year: '2014'
...