---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '21008'
abstract:
- lang: eng
  text: C(sp2)–heteroatom couplings operating via NiI/NiIII catalysis have emerged
    as an alternative to canonical Pd0/PdII systems that require complex ligand architectures.
    Despite intensive research efforts during the past decade, catalytic methods employing
    this approach are still mostly confined to activated starting materials and require
    high catalyst loadings due to the low catalytic activity of NiI and undesired
    catalyst deactivation events. This article highlights recent advances in the field
    toward solving these long-standing challenges. We survey strategies that streamline
    the generation of catalytically competent NiI species from bench-stable NiII precatalysts,
    and discuss mechanistic studies that shed light on deactivation pathways and the
    rate-determining oxidative addition of aryl halides. In the final section, we
    highlight recently developed synthetic methodologies, which provide evidence that
    limitations can indeed be addressed by working at elevated temperatures, employing
    alternative electrophiles, harnessing the benefits of additives, or fine-tuning
    the metal’s reactivity through the ligand field.
acknowledgement: We gratefully acknowledge the Institute of Science and Technology
  Austria for generous financial support. B.P. acknowledges the Austrian Science Fund
  (PAT 1250924) for funding.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Aleksander
  full_name: Bena, Aleksander
  id: 4197c39e-e8ec-11ed-86cb-afed934cd664
  last_name: Bena
- first_name: Bartholomäus
  full_name: Pieber, Bartholomäus
  id: 93e5e5b2-0da6-11ed-8a41-af589a024726
  last_name: Pieber
  orcid: 0000-0001-8689-388X
citation:
  ama: Bena A, Pieber B. Advances in NiI/NiIII-catalyzed C(sp2)–heteroatom cross-couplings.
    <i>ACS Catalysis</i>. 2026;16(2):866-881. doi:<a href="https://doi.org/10.1021/acscatal.5c07964">10.1021/acscatal.5c07964</a>
  apa: Bena, A., &#38; Pieber, B. (2026). Advances in NiI/NiIII-catalyzed C(sp2)–heteroatom
    cross-couplings. <i>ACS Catalysis</i>. American Chemical Society. <a href="https://doi.org/10.1021/acscatal.5c07964">https://doi.org/10.1021/acscatal.5c07964</a>
  chicago: Bena, Aleksander, and Bartholomäus Pieber. “Advances in NiI/NiIII-Catalyzed
    C(Sp2)–Heteroatom Cross-Couplings.” <i>ACS Catalysis</i>. American Chemical Society,
    2026. <a href="https://doi.org/10.1021/acscatal.5c07964">https://doi.org/10.1021/acscatal.5c07964</a>.
  ieee: A. Bena and B. Pieber, “Advances in NiI/NiIII-catalyzed C(sp2)–heteroatom
    cross-couplings,” <i>ACS Catalysis</i>, vol. 16, no. 2. American Chemical Society,
    pp. 866–881, 2026.
  ista: Bena A, Pieber B. 2026. Advances in NiI/NiIII-catalyzed C(sp2)–heteroatom
    cross-couplings. ACS Catalysis. 16(2), 866–881.
  mla: Bena, Aleksander, and Bartholomäus Pieber. “Advances in NiI/NiIII-Catalyzed
    C(Sp2)–Heteroatom Cross-Couplings.” <i>ACS Catalysis</i>, vol. 16, no. 2, American
    Chemical Society, 2026, pp. 866–81, doi:<a href="https://doi.org/10.1021/acscatal.5c07964">10.1021/acscatal.5c07964</a>.
  short: A. Bena, B. Pieber, ACS Catalysis 16 (2026) 866–881.
corr_author: '1'
date_created: 2026-01-20T10:04:57Z
date_published: 2026-01-16T00:00:00Z
date_updated: 2026-01-21T09:15:16Z
day: '16'
ddc:
- '540'
department:
- _id: BaPi
- _id: GradSch
doi: 10.1021/acscatal.5c07964
file:
- access_level: open_access
  checksum: 05743d6d7b4bae37aad1a91471123032
  content_type: application/pdf
  creator: dernst
  date_created: 2026-01-21T09:12:10Z
  date_updated: 2026-01-21T09:12:10Z
  file_id: '21030'
  file_name: 2026_ACSCatalysis_Bena.pdf
  file_size: 3797064
  relation: main_file
  success: 1
file_date_updated: 2026-01-21T09:12:10Z
has_accepted_license: '1'
intvolume: '        16'
issue: '2'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '01'
oa: 1
oa_version: Published Version
page: 866-881
project:
- _id: 8f1d607d-16d5-11f0-9cad-ab453295ba5e
  grant_number: PAT 1250924
  name: Photoactive ligands for transformative nickel catalysis
publication: ACS Catalysis
publication_identifier:
  eissn:
  - 2155-5435
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Advances in NiI/NiIII-catalyzed C(sp2)–heteroatom cross-couplings
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2026'
...
---
_id: '14663'
abstract:
- lang: eng
  text: As a bottleneck in the direct synthesis of hydrogen peroxide, the development
    of an efficient palladium-based catalyst has garnered great attention. However,
    elusive active centers and reaction mechanism issues inhibit further optimization
    of its performance. In this work, advanced microkinetic modeling with the adsorbate–adsorbate
    interaction and nanoparticle size effect based on first-principles calculations
    is developed. A full mechanism uncovering the significance of adsorbate–adsorbate
    interaction is determined on Pd nanoparticles. We demonstrate unambiguously that
    Pd(100) with main coverage species of O2 and H is beneficial to H2O2 production,
    being consistent with experimental operando observation, while H2O forms on Pd(111)
    covered by O species and Pd(211) covered by O and OH species. Kinetic analyses
    further enable quantitative estimation of the influence of temperature, pressure,
    and particle size. Large-size Pd nanoparticles are found to achieve a high H2O2
    reaction rate when the operating conditions are moderate temperature and higher
    oxygen partial pressure. We reveal that specific facets of the Pd nanoparticles
    are crucial factors for their selectivity and activity. Consistent with the experiment,
    the production of H2O2 is discovered to be more favorable on Pd nanoparticles
    containing Pd(100) facets. The ratio of H2/O2 induces substantial variations in
    the coverage of intermediates of O2 and H on Pd(100), resulting in a change in
    product selectivity.
acknowledgement: The authors acknowledge the financial support from the National Natural
  Science Foundation of China (22008211, 92045303, U21A20298), the National Key Research
  and Development Project of China (2021YFA1500900, 2022YFE0113800), and Zhejiang
  Innovation Team (2017R5203).
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Jinyan
  full_name: Zhao, Jinyan
  last_name: Zhao
- first_name: Zihao
  full_name: Yao, Zihao
  last_name: Yao
- first_name: Rhys
  full_name: Bunting, Rhys
  id: 91deeae8-1207-11ec-b130-c194ad5b50c6
  last_name: Bunting
  orcid: 0000-0001-6928-074X
- first_name: P.
  full_name: Hu, P.
  last_name: Hu
- first_name: Jianguo
  full_name: Wang, Jianguo
  last_name: Wang
citation:
  ama: Zhao J, Yao Z, Bunting R, Hu P, Wang J. Microkinetic modeling with size-dependent
    and adsorbate-adsorbate interactions for the direct synthesis of H₂O₂ over Pd
    nanoparticles. <i>ACS Catalysis</i>. 2023;13(22):15054-15073. doi:<a href="https://doi.org/10.1021/acscatal.3c03893">10.1021/acscatal.3c03893</a>
  apa: Zhao, J., Yao, Z., Bunting, R., Hu, P., &#38; Wang, J. (2023). Microkinetic
    modeling with size-dependent and adsorbate-adsorbate interactions for the direct
    synthesis of H₂O₂ over Pd nanoparticles. <i>ACS Catalysis</i>. American Chemical
    Society. <a href="https://doi.org/10.1021/acscatal.3c03893">https://doi.org/10.1021/acscatal.3c03893</a>
  chicago: Zhao, Jinyan, Zihao Yao, Rhys Bunting, P. Hu, and Jianguo Wang. “Microkinetic
    Modeling with Size-Dependent and Adsorbate-Adsorbate Interactions for the Direct
    Synthesis of H₂O₂ over Pd Nanoparticles.” <i>ACS Catalysis</i>. American Chemical
    Society, 2023. <a href="https://doi.org/10.1021/acscatal.3c03893">https://doi.org/10.1021/acscatal.3c03893</a>.
  ieee: J. Zhao, Z. Yao, R. Bunting, P. Hu, and J. Wang, “Microkinetic modeling with
    size-dependent and adsorbate-adsorbate interactions for the direct synthesis of
    H₂O₂ over Pd nanoparticles,” <i>ACS Catalysis</i>, vol. 13, no. 22. American Chemical
    Society, pp. 15054–15073, 2023.
  ista: Zhao J, Yao Z, Bunting R, Hu P, Wang J. 2023. Microkinetic modeling with size-dependent
    and adsorbate-adsorbate interactions for the direct synthesis of H₂O₂ over Pd
    nanoparticles. ACS Catalysis. 13(22), 15054–15073.
  mla: Zhao, Jinyan, et al. “Microkinetic Modeling with Size-Dependent and Adsorbate-Adsorbate
    Interactions for the Direct Synthesis of H₂O₂ over Pd Nanoparticles.” <i>ACS Catalysis</i>,
    vol. 13, no. 22, American Chemical Society, 2023, pp. 15054–73, doi:<a href="https://doi.org/10.1021/acscatal.3c03893">10.1021/acscatal.3c03893</a>.
  short: J. Zhao, Z. Yao, R. Bunting, P. Hu, J. Wang, ACS Catalysis 13 (2023) 15054–15073.
corr_author: '1'
date_created: 2023-12-10T23:00:59Z
date_published: 2023-11-06T00:00:00Z
date_updated: 2025-09-09T13:39:57Z
day: '06'
ddc:
- '540'
department:
- _id: MaIb
doi: 10.1021/acscatal.3c03893
external_id:
  isi:
  - '001140495600001'
file:
- access_level: open_access
  checksum: a97c771077af71ddfb2249e34530895c
  content_type: application/pdf
  creator: dernst
  date_created: 2023-12-11T11:55:09Z
  date_updated: 2023-12-11T11:55:09Z
  file_id: '14676'
  file_name: 2023_ACSCatalysis_.pdf
  file_size: 14813812
  relation: main_file
  success: 1
file_date_updated: 2023-12-11T11:55:09Z
has_accepted_license: '1'
intvolume: '        13'
isi: 1
issue: '22'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: 15054-15073
publication: ACS Catalysis
publication_identifier:
  eissn:
  - 2155-5435
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Microkinetic modeling with size-dependent and adsorbate-adsorbate interactions
  for the direct synthesis of H₂O₂ over Pd nanoparticles
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: 13
year: '2023'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20760'
abstract:
- lang: eng
  text: The implementation of HCN-free transfer hydrocyanation reactions on laboratory
    scales has recently been achieved by using HCN donor reagents under nickel- and
    Lewis acid co-catalysis. More recently, malononitrile-based HCN donor reagents
    were shown to undergo the C(sp3)–CN bond activation by the nickel catalyst in
    the absence of Lewis acids. However, there is a lack of detailed mechanistic understanding
    of the challenging C(sp3)–CN bond cleavage step. In this work, in-depth kinetic
    and computational studies using alkynes as substrates were used to elucidate the
    overall reaction mechanism of this transfer hydrocyanation, with a particular
    focus on the activation of the C(sp3)–CN bond to generate the active H–Ni–CN transfer
    hydrocyanation catalyst. Comparisons of experimentally and computationally derived
    13C kinetic isotope effect data support a direct oxidative addition mechanism
    of the nickel catalyst into the C(sp3)–CN bond facilitated by the coordination
    of the second nitrile group to the nickel catalyst.
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Julia
  full_name: Reisenbauer, Julia
  id: 51d862e9-36ee-11f0-86d3-8534c85a5496
  last_name: Reisenbauer
- first_name: Patrick
  full_name: Finkelstein, Patrick
  last_name: Finkelstein
- first_name: Marc-Olivier
  full_name: Ebert, Marc-Olivier
  last_name: Ebert
- first_name: Bill
  full_name: Morandi, Bill
  last_name: Morandi
citation:
  ama: Reisenbauer J, Finkelstein P, Ebert M-O, Morandi B. Mechanistic investigation
    of the nickel-catalyzed transfer hydrocyanation of alkynes. <i>ACS Catalysis</i>.
    2023;13(17):11548-11555. doi:<a href="https://doi.org/10.1021/acscatal.3c02977">10.1021/acscatal.3c02977</a>
  apa: Reisenbauer, J., Finkelstein, P., Ebert, M.-O., &#38; Morandi, B. (2023). Mechanistic
    investigation of the nickel-catalyzed transfer hydrocyanation of alkynes. <i>ACS
    Catalysis</i>. American Chemical Society. <a href="https://doi.org/10.1021/acscatal.3c02977">https://doi.org/10.1021/acscatal.3c02977</a>
  chicago: Reisenbauer, Julia, Patrick Finkelstein, Marc-Olivier Ebert, and Bill Morandi.
    “Mechanistic Investigation of the Nickel-Catalyzed Transfer Hydrocyanation of
    Alkynes.” <i>ACS Catalysis</i>. American Chemical Society, 2023. <a href="https://doi.org/10.1021/acscatal.3c02977">https://doi.org/10.1021/acscatal.3c02977</a>.
  ieee: J. Reisenbauer, P. Finkelstein, M.-O. Ebert, and B. Morandi, “Mechanistic
    investigation of the nickel-catalyzed transfer hydrocyanation of alkynes,” <i>ACS
    Catalysis</i>, vol. 13, no. 17. American Chemical Society, pp. 11548–11555, 2023.
  ista: Reisenbauer J, Finkelstein P, Ebert M-O, Morandi B. 2023. Mechanistic investigation
    of the nickel-catalyzed transfer hydrocyanation of alkynes. ACS Catalysis. 13(17),
    11548–11555.
  mla: Reisenbauer, Julia, et al. “Mechanistic Investigation of the Nickel-Catalyzed
    Transfer Hydrocyanation of Alkynes.” <i>ACS Catalysis</i>, vol. 13, no. 17, American
    Chemical Society, 2023, pp. 11548–55, doi:<a href="https://doi.org/10.1021/acscatal.3c02977">10.1021/acscatal.3c02977</a>.
  short: J. Reisenbauer, P. Finkelstein, M.-O. Ebert, B. Morandi, ACS Catalysis 13
    (2023) 11548–11555.
date_created: 2025-12-09T14:23:42Z
date_published: 2023-08-16T00:00:00Z
date_updated: 2025-12-16T11:11:14Z
day: '16'
doi: 10.1021/acscatal.3c02977
extern: '1'
external_id:
  pmid:
  - '37671177'
has_accepted_license: '1'
intvolume: '        13'
issue: '17'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1021/acscatal.3c02977
month: '08'
oa: 1
oa_version: Published Version
page: 11548-11555
pmid: 1
publication: ACS Catalysis
publication_identifier:
  eissn:
  - 2155-5435
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Mechanistic investigation of the nickel-catalyzed transfer hydrocyanation of
  alkynes
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2023'
...
---
_id: '12923'
abstract:
- lang: eng
  text: Photoredox-mediated Ni-catalyzed cross-couplings are powerful transformations
    to form carbon–heteroatom bonds and are generally photocatalyzed by noble metal
    complexes. Low-cost and easy-to-prepare carbon dots (CDs) are attractive quasi-homogeneous
    photocatalyst alternatives, but their applicability is limited by their short
    photoluminescence (PL) lifetimes. By tuning the surface and PL properties of CDs,
    we designed colloidal CD nano-photocatalysts for a broad range of Ni-mediated
    cross-couplings between aryl halides and nucleophiles. In particular, a CD decorated
    with amino groups permitted coupling to a wide range of aryl halides and thiols
    under mild, base-free conditions. Mechanistic studies suggested dynamic quenching
    of the CD excited state by the Ni co-catalyst and identified that pyridinium iodide
    (pyHI), a previously used additive in metallaphotocatalyzed cross-couplings, can
    also act as a photocatalyst in such transformations.
article_processing_charge: No
article_type: original
author:
- first_name: Zhouxiang
  full_name: Zhao, Zhouxiang
  last_name: Zhao
- first_name: Bartholomäus
  full_name: Pieber, Bartholomäus
  id: 93e5e5b2-0da6-11ed-8a41-af589a024726
  last_name: Pieber
  orcid: 0000-0001-8689-388X
- first_name: Martina
  full_name: Delbianco, Martina
  last_name: Delbianco
citation:
  ama: Zhao Z, Pieber B, Delbianco M. Modulating the surface and photophysical properties
    of carbon dots to access colloidal photocatalysts for cross-couplings. <i>ACS
    Catalysis</i>. 2022;12(22):13831-13837. doi:<a href="https://doi.org/10.1021/acscatal.2c04025">10.1021/acscatal.2c04025</a>
  apa: Zhao, Z., Pieber, B., &#38; Delbianco, M. (2022). Modulating the surface and
    photophysical properties of carbon dots to access colloidal photocatalysts for
    cross-couplings. <i>ACS Catalysis</i>. American Chemical Society. <a href="https://doi.org/10.1021/acscatal.2c04025">https://doi.org/10.1021/acscatal.2c04025</a>
  chicago: Zhao, Zhouxiang, Bartholomäus Pieber, and Martina Delbianco. “Modulating
    the Surface and Photophysical Properties of Carbon Dots to Access Colloidal Photocatalysts
    for Cross-Couplings.” <i>ACS Catalysis</i>. American Chemical Society, 2022. <a
    href="https://doi.org/10.1021/acscatal.2c04025">https://doi.org/10.1021/acscatal.2c04025</a>.
  ieee: Z. Zhao, B. Pieber, and M. Delbianco, “Modulating the surface and photophysical
    properties of carbon dots to access colloidal photocatalysts for cross-couplings,”
    <i>ACS Catalysis</i>, vol. 12, no. 22. American Chemical Society, pp. 13831–13837,
    2022.
  ista: Zhao Z, Pieber B, Delbianco M. 2022. Modulating the surface and photophysical
    properties of carbon dots to access colloidal photocatalysts for cross-couplings.
    ACS Catalysis. 12(22), 13831–13837.
  mla: Zhao, Zhouxiang, et al. “Modulating the Surface and Photophysical Properties
    of Carbon Dots to Access Colloidal Photocatalysts for Cross-Couplings.” <i>ACS
    Catalysis</i>, vol. 12, no. 22, American Chemical Society, 2022, pp. 13831–37,
    doi:<a href="https://doi.org/10.1021/acscatal.2c04025">10.1021/acscatal.2c04025</a>.
  short: Z. Zhao, B. Pieber, M. Delbianco, ACS Catalysis 12 (2022) 13831–13837.
date_created: 2023-05-08T08:28:54Z
date_published: 2022-10-27T00:00:00Z
date_updated: 2024-10-14T12:07:49Z
day: '27'
doi: 10.1021/acscatal.2c04025
extern: '1'
intvolume: '        12'
issue: '22'
keyword:
- Catalysis
- General Chemistry
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1021/acscatal.2c04025
month: '10'
oa: 1
oa_version: Published Version
page: 13831-13837
publication: ACS Catalysis
publication_identifier:
  eissn:
  - 2155-5435
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Modulating the surface and photophysical properties of carbon dots to access
  colloidal photocatalysts for cross-couplings
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 12
year: '2022'
...
---
_id: '11954'
abstract:
- lang: eng
  text: The combination of nickel and photocatalysis has unlocked a variety of cross-couplings.
    These protocols rely on a few photocatalysts that can only convert a small portion
    of visible light (<500 nm) into chemical energy. The high-energy photons that
    excite the photocatalyst can result in unwanted side reactions. Dyes that absorb
    a much broader spectrum of light are not applicable because of their short-lived
    singlet excited states. Here, we describe a self-assembling catalyst system that
    overcomes this limitation. Immobilization of a nickel catalyst on dye-sensitized
    titanium dioxide results in a material that catalyzes carbon–heteroatom and carbon–carbon
    bond formations. The modular approach of dye-sensitized metallaphotocatalysts
    accesses the entire visible light spectrum and allows tackling selectivity issues
    resulting from low wavelengths strategically. The concept overcomes current limitations
    of metallaphotocatalysis by unlocking the potential of dyes that were previously
    unsuitable.
article_processing_charge: No
article_type: original
author:
- first_name: Susanne
  full_name: Reischauer, Susanne
  last_name: Reischauer
- first_name: Volker
  full_name: Strauss, Volker
  last_name: Strauss
- first_name: Bartholomäus
  full_name: Pieber, Bartholomäus
  id: 93e5e5b2-0da6-11ed-8a41-af589a024726
  last_name: Pieber
  orcid: 0000-0001-8689-388X
citation:
  ama: Reischauer S, Strauss V, Pieber B. Modular, self-assembling metallaphotocatalyst
    for cross-couplings using the full visible-light spectrum. <i>ACS Catalysis</i>.
    2020;10(22):13269–13274. doi:<a href="https://doi.org/10.1021/acscatal.0c03950">10.1021/acscatal.0c03950</a>
  apa: Reischauer, S., Strauss, V., &#38; Pieber, B. (2020). Modular, self-assembling
    metallaphotocatalyst for cross-couplings using the full visible-light spectrum.
    <i>ACS Catalysis</i>. American Chemical Society. <a href="https://doi.org/10.1021/acscatal.0c03950">https://doi.org/10.1021/acscatal.0c03950</a>
  chicago: Reischauer, Susanne, Volker Strauss, and Bartholomäus Pieber. “Modular,
    Self-Assembling Metallaphotocatalyst for Cross-Couplings Using the Full Visible-Light
    Spectrum.” <i>ACS Catalysis</i>. American Chemical Society, 2020. <a href="https://doi.org/10.1021/acscatal.0c03950">https://doi.org/10.1021/acscatal.0c03950</a>.
  ieee: S. Reischauer, V. Strauss, and B. Pieber, “Modular, self-assembling metallaphotocatalyst
    for cross-couplings using the full visible-light spectrum,” <i>ACS Catalysis</i>,
    vol. 10, no. 22. American Chemical Society, pp. 13269–13274, 2020.
  ista: Reischauer S, Strauss V, Pieber B. 2020. Modular, self-assembling metallaphotocatalyst
    for cross-couplings using the full visible-light spectrum. ACS Catalysis. 10(22),
    13269–13274.
  mla: Reischauer, Susanne, et al. “Modular, Self-Assembling Metallaphotocatalyst
    for Cross-Couplings Using the Full Visible-Light Spectrum.” <i>ACS Catalysis</i>,
    vol. 10, no. 22, American Chemical Society, 2020, pp. 13269–13274, doi:<a href="https://doi.org/10.1021/acscatal.0c03950">10.1021/acscatal.0c03950</a>.
  short: S. Reischauer, V. Strauss, B. Pieber, ACS Catalysis 10 (2020) 13269–13274.
date_created: 2022-08-24T10:40:46Z
date_published: 2020-11-02T00:00:00Z
date_updated: 2024-10-14T11:42:40Z
day: '02'
doi: 10.1021/acscatal.0c03950
extern: '1'
intvolume: '        10'
issue: '22'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.26434/chemrxiv.12444908
month: '11'
oa: 1
oa_version: Preprint
page: 13269–13274
publication: ACS Catalysis
publication_identifier:
  eissn:
  - 2155-5435
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Modular, self-assembling metallaphotocatalyst for cross-couplings using the
  full visible-light spectrum
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10
year: '2020'
...
---
OA_place: repository
OA_type: green
_id: '8926'
abstract:
- lang: eng
  text: 'Bimetallic nanoparticles with tailored size and specific composition have
    shown promise as stable and selective catalysts for electrochemical reduction
    of CO2 (CO2R) in batch systems. Yet, limited effort was devoted to understand
    the effect of ligand coverage and postsynthesis treatments on CO2 reduction, especially
    under industrially applicable conditions, such as at high currents (>100 mA/cm2)
    using gas diffusion electrodes (GDE) and flow reactors. In this work, Cu–Ag core–shell
    nanoparticles (11 ± 2 nm) were prepared with three different surface modes: (i)
    capped with oleylamine, (ii) capped with monoisopropylamine, and (iii) surfactant-free
    with a reducing borohydride agent; Cu–Ag (OAm), Cu–Ag (MIPA), and Cu–Ag (NaBH4),
    respectively. The ligand exchange and removal was evidenced by infrared spectroscopy
    (ATR-FTIR) analysis, whereas high-resolution scanning transmission electron microscopy
    (HAADF-STEM) showed their effect on the interparticle distance and nanoparticle
    rearrangement. Later on, we developed a process-on-substrate method to track these
    effects on CO2R. Cu–Ag (OAm) gave a lower on-set potential for hydrocarbon production,
    whereas Cu–Ag (MIPA) and Cu–Ag (NaBH4) promoted syngas production. The electrochemical
    impedance and surface area analysis on the well-controlled electrodes showed gradual
    increases in the electrical conductivity and active surface area after each surface
    treatment. We found that the increasing amount of the triple phase boundaries
    (the meeting point for the electron–electrolyte–CO2 reactant) affect the required
    electrode potential and eventually the C+2e̅/C2e̅ product ratio. This study highlights
    the importance of the electron transfer to those active sites affected by the
    capping agents—particularly on larger substrates that are crucial for their industrial
    application.'
acknowledgement: The authors also acknowledge financial support from the University
  Research Fund (BOF-GOA-PS ID No. 33928). S.L. has received funding from the European
  Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie
  Grant Agreement No. 665385.
article_processing_charge: No
article_type: original
author:
- first_name: Erdem
  full_name: Irtem, Erdem
  last_name: Irtem
- first_name: Daniel
  full_name: Arenas Esteban, Daniel
  last_name: Arenas Esteban
- first_name: Miguel
  full_name: Duarte, Miguel
  last_name: Duarte
- first_name: Daniel
  full_name: Choukroun, Daniel
  last_name: Choukroun
- first_name: Seungho
  full_name: Lee, Seungho
  id: BB243B88-D767-11E9-B658-BC13E6697425
  last_name: Lee
  orcid: 0000-0002-6962-8598
- first_name: Maria
  full_name: Ibáñez, Maria
  id: 43C61214-F248-11E8-B48F-1D18A9856A87
  last_name: Ibáñez
  orcid: 0000-0001-5013-2843
- first_name: Sara
  full_name: Bals, Sara
  last_name: Bals
- first_name: Tom
  full_name: Breugelmans, Tom
  last_name: Breugelmans
citation:
  ama: Irtem E, Arenas Esteban D, Duarte M, et al. Ligand-mode directed selectivity
    in Cu-Ag core-shell based gas diffusion electrodes for CO2 electroreduction. <i>ACS
    Catalysis</i>. 2020;10(22):13468-13478. doi:<a href="https://doi.org/10.1021/acscatal.0c03210">10.1021/acscatal.0c03210</a>
  apa: Irtem, E., Arenas Esteban, D., Duarte, M., Choukroun, D., Lee, S., Ibáñez,
    M., … Breugelmans, T. (2020). Ligand-mode directed selectivity in Cu-Ag core-shell
    based gas diffusion electrodes for CO2 electroreduction. <i>ACS Catalysis</i>.
    American Chemical Society. <a href="https://doi.org/10.1021/acscatal.0c03210">https://doi.org/10.1021/acscatal.0c03210</a>
  chicago: Irtem, Erdem, Daniel Arenas Esteban, Miguel Duarte, Daniel Choukroun, Seungho
    Lee, Maria Ibáñez, Sara Bals, and Tom Breugelmans. “Ligand-Mode Directed Selectivity
    in Cu-Ag Core-Shell Based Gas Diffusion Electrodes for CO2 Electroreduction.”
    <i>ACS Catalysis</i>. American Chemical Society, 2020. <a href="https://doi.org/10.1021/acscatal.0c03210">https://doi.org/10.1021/acscatal.0c03210</a>.
  ieee: E. Irtem <i>et al.</i>, “Ligand-mode directed selectivity in Cu-Ag core-shell
    based gas diffusion electrodes for CO2 electroreduction,” <i>ACS Catalysis</i>,
    vol. 10, no. 22. American Chemical Society, pp. 13468–13478, 2020.
  ista: Irtem E, Arenas Esteban D, Duarte M, Choukroun D, Lee S, Ibáñez M, Bals S,
    Breugelmans T. 2020. Ligand-mode directed selectivity in Cu-Ag core-shell based
    gas diffusion electrodes for CO2 electroreduction. ACS Catalysis. 10(22), 13468–13478.
  mla: Irtem, Erdem, et al. “Ligand-Mode Directed Selectivity in Cu-Ag Core-Shell
    Based Gas Diffusion Electrodes for CO2 Electroreduction.” <i>ACS Catalysis</i>,
    vol. 10, no. 22, American Chemical Society, 2020, pp. 13468–78, doi:<a href="https://doi.org/10.1021/acscatal.0c03210">10.1021/acscatal.0c03210</a>.
  short: E. Irtem, D. Arenas Esteban, M. Duarte, D. Choukroun, S. Lee, M. Ibáñez,
    S. Bals, T. Breugelmans, ACS Catalysis 10 (2020) 13468–13478.
date_created: 2020-12-06T23:01:15Z
date_published: 2020-11-20T00:00:00Z
date_updated: 2026-04-03T09:31:02Z
day: '20'
department:
- _id: MaIb
doi: 10.1021/acscatal.0c03210
ec_funded: 1
external_id:
  isi:
  - '000592978900031'
intvolume: '        10'
isi: 1
issue: '22'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://repository.uantwerpen.be/docman/irua/190103/173803.pdf
month: '11'
oa: 1
oa_version: Submitted Version
page: 13468-13478
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '665385'
  name: International IST Doctoral Program
publication: ACS Catalysis
publication_identifier:
  eissn:
  - 2155-5435
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ligand-mode directed selectivity in Cu-Ag core-shell based gas diffusion electrodes
  for CO2 electroreduction
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 10
year: '2020'
...
