--- OA_place: publisher OA_type: hybrid _id: '20191' abstract: - lang: eng text: High-entropy alloys (HEAs) show great potential for catalyzing complex multi-step reactions, but optimizing their parameters, i.e., composition, but also their crystallinity and morphology, remains a significant challenge. In this study, FeCoNiMoW HEAs are synthesized into either amorphous nanosheets (HEANS) or crystalline nanoparticles (HEANP), which are then used to catalyze the lithium–sulfur (Li–S) reaction of Li–S batteries (LSBs). Evaluations in symmetric cells, coin cells, and pouch cells reveal that HEANS significantly enhance LSB performance, achieving initial discharge capacities up to 1632 mAh g−1. The batteries also exhibit excellent cycling stability over 1000 cycles at 3Cand maintain high-rate performance up to 10C with a capacity of 614 mAh g−1. Comprehensive in situ analyses and density functional theory calculations demonstrate that amorphous HEANS provide more active sites, better ionic conductivity and stronger chemical interactions with lithium polysulfides (LiPS). These properties effectively suppress the shuttle effect, promote the complete S8 → Li2S conversion by reducing the impedance of the solid-electrolyte interphase, and accelerate the Li2S4 → Li2S2 step by lowering the nucleation energy barrier. Overall, this study highlights the superior catalytic properties of amorphous 2D HEAs in LSBs and offers new insights into the mechanisms of LiPS conversion. acknowledged_ssus: - _id: EM-Fac acknowledgement: The authors acknowledge support from the 2BoSS project of the ERA-MIN3 program with the Spanish grant number PCI2022-132985/AEI/10.13039/50110001103, and funding from Generalitat de Catalunya 2021SGR01581 and European Union NextGenerationEU/PRTR. L.Yang, C.Huang, X.Lu, A.Yu, C.Li, J.Yu, and X.Bi thank the China Scholarship Council (CSC) for the scholarship support. This research was supported by the Scientific Service Units (SSU) of ISTA through resources provided by the Electron Microscopy Facility (EMF), and by the Werner Siemens Foundation (WSS) for financial support. article_number: e13859 article_processing_charge: Yes (in subscription journal) article_type: original author: - first_name: Ren full_name: He, Ren last_name: He - first_name: Seungho full_name: Lee, Seungho id: BB243B88-D767-11E9-B658-BC13E6697425 last_name: Lee orcid: 0000-0002-6962-8598 - first_name: Yang full_name: Ding, Yang last_name: Ding - first_name: Chen full_name: Huang, Chen last_name: Huang - first_name: Xuan full_name: Lu, Xuan last_name: Lu - first_name: Lirong full_name: Zheng, Lirong last_name: Zheng - first_name: Ao full_name: Yu, Ao last_name: Yu - first_name: Chaoyue full_name: Zhang, Chaoyue last_name: Zhang - first_name: Canhuang full_name: Li, Canhuang last_name: Li - first_name: Xiaoyu full_name: Bi, Xiaoyu last_name: Bi - first_name: Yaqiang full_name: Li, Yaqiang last_name: Li - first_name: Yaqi full_name: Liao, Yaqi last_name: Liao - first_name: Junshan full_name: Li, Junshan last_name: Li - first_name: Ahmad full_name: Ostovari Moghaddam, Ahmad last_name: Ostovari Moghaddam - first_name: Salimov full_name: Yernar, Salimov last_name: Yernar - first_name: Ying full_name: Xu, Ying last_name: Xu - first_name: Maria full_name: Ibáñez, Maria id: 43C61214-F248-11E8-B48F-1D18A9856A87 last_name: Ibáñez orcid: 0000-0001-5013-2843 - first_name: Chaoqi full_name: Zhang, Chaoqi last_name: Zhang - first_name: Linlin full_name: Yang, Linlin last_name: Yang - first_name: Yingtang full_name: Zhou, Yingtang last_name: Zhou - first_name: Andreu full_name: Cabot, Andreu last_name: Cabot citation: ama: He R, Lee S, Ding Y, et al. Amorphous high entropy alloy nanosheets enabling robust Li–S batteries. Advanced Functional Materials. 2026;36(5). doi:10.1002/adfm.202513859 apa: He, R., Lee, S., Ding, Y., Huang, C., Lu, X., Zheng, L., … Cabot, A. (2026). Amorphous high entropy alloy nanosheets enabling robust Li–S batteries. Advanced Functional Materials. Wiley. https://doi.org/10.1002/adfm.202513859 chicago: He, Ren, Seungho Lee, Yang Ding, Chen Huang, Xuan Lu, Lirong Zheng, Ao Yu, et al. “Amorphous High Entropy Alloy Nanosheets Enabling Robust Li–S Batteries.” Advanced Functional Materials. Wiley, 2026. https://doi.org/10.1002/adfm.202513859. ieee: R. He et al., “Amorphous high entropy alloy nanosheets enabling robust Li–S batteries,” Advanced Functional Materials, vol. 36, no. 5. Wiley, 2026. ista: He R, Lee S, Ding Y, Huang C, Lu X, Zheng L, Yu A, Zhang C, Li C, Bi X, Li Y, Liao Y, Li J, Ostovari Moghaddam A, Yernar S, Xu Y, Ibáñez M, Zhang C, Yang L, Zhou Y, Cabot A. 2026. Amorphous high entropy alloy nanosheets enabling robust Li–S batteries. Advanced Functional Materials. 36(5), e13859. mla: He, Ren, et al. “Amorphous High Entropy Alloy Nanosheets Enabling Robust Li–S Batteries.” Advanced Functional Materials, vol. 36, no. 5, e13859, Wiley, 2026, doi:10.1002/adfm.202513859. short: R. He, S. Lee, Y. Ding, C. Huang, X. Lu, L. Zheng, A. Yu, C. Zhang, C. Li, X. Bi, Y. Li, Y. Liao, J. Li, A. Ostovari Moghaddam, S. Yernar, Y. Xu, M. Ibáñez, C. Zhang, L. Yang, Y. Zhou, A. Cabot, Advanced Functional Materials 36 (2026). das_tickbox: '1' dataavailabilitystatement: The data that support the findings of this study are available from the cor-responding authors upon reasonable request. date_created: 2025-08-17T22:01:37Z date_published: 2026-01-15T00:00:00Z date_updated: 2026-07-23T11:42:17Z day: '15' ddc: - '540' department: - _id: MaIb doi: 10.1002/adfm.202513859 external_id: isi: - '001544757200001' file: - access_level: open_access checksum: b102207b2343e6e7dba00870bfe362ea content_type: application/pdf creator: dernst date_created: 2026-07-23T11:40:34Z date_updated: 2026-07-23T11:40:34Z file_id: '22397' file_name: 2026_AdvancedFunctionalMat_He.pdf file_size: 5734587 relation: main_file success: 1 file_date_updated: 2026-07-23T11:40:34Z has_accepted_license: '1' intvolume: ' 36' isi: 1 issue: '5' keyword: - amorphous - high entropy alloy - in situ electrochemical impedance spec-troscopy - in situ Raman - Li–S batteries language: - iso: eng month: '01' oa: 1 oa_version: Published Version project: - _id: 9B8F7476-BA93-11EA-9121-9846C619BF3A name: 'HighTE: The Werner Siemens Laboratory for the High Throughput Discovery of Semiconductors for Waste Heat Recovery' publication: Advanced Functional Materials publication_identifier: eissn: - 1616-3028 issn: - 1616-301X publication_status: published publisher: Wiley quality_controlled: '1' researchdata_availability: upon request scopus_import: '1' status: public supplementarymaterial: no title: Amorphous high entropy alloy nanosheets enabling robust Li–S batteries tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 36 year: '2026' ... --- OA_type: closed access _id: '18882' abstract: - lang: eng text: Ternary liquid-like thermoelectric materials have garnered significant attention due to their ultra-low lattice thermal conductivity. Among these, Ag8SnSe6 stands out for its exceptionally low sound velocity and thermal conductivity. However, the inherent poor electrical conductivity and suboptimal thermoelectric properties of Ag8SnSe6 necessitate further improvement. Here, a novel approach is initiated to enhance the thermoelectric properties of Ag8SnSe6 by combining low-dimensionalization with intrinsic doping. For the first time, this work successfully synthesizes single-phase Ag8SnSe6 nanocrystals, ≈10 nm in size, with the correct phase and composition using a robust and reliable colloidal method. This approach represents a significant improvement over previous reports on this material. Reducing the crystal domains of Ag8SnSe6 to the nanoscale induces quantum confinement effects, increasing the density of states near the Fermi surface. It also introduces additional grain boundaries, which lower the lattice thermal conductivity and simplify structural design. Moreover, incorporating small amounts of Sn nanopowder into the Ag8SnSe6 nanocrystals before consolidation further enhances the thermoelectric performance. Sn acts as a donor dopant, increasing the electronic concentration while at the same time improving their mobility by reducing interface barriers, thus significantly improving the material transport properties. Additionally, the presence of Sn leads to the formation of point defects, dislocations, and secondary phases, which increase phonon scattering and further reduce the thermal conductivity. Through this synergistic optimization, the figure of merit shows a significant increase across a wide temperature range. Overall, a strategy is presented for the controlled preparation of Ag8SnSe6 nanocrystals, the decoupling of their electrical and thermal transport, and the practical application of this material to thermoelectric single-leg modules. acknowledgement: X.Z. and M.L. contributed equally to this work. This work was supported by the National Key R&D Program of China (No. 2024YFE0105200). Also supported by the China Postdoctoral Science Foundation under Grant Number 2023M743151. M.J. acknowledges funding from the China Postdoctoral Science Foundation (No. 2023M743221). A.C. thanks the support from the projects ENE2016-77798-C4-3-R and NANOGEN (PID2020-116093RB-C43), funded by MCIN/ AEI/10.13039/501100011033/ and by “ERDF A way of making Europe”, by the “European Union”. article_number: '2421449' article_processing_charge: No article_type: original author: - first_name: Xueke full_name: Zhao, Xueke last_name: Zhao - first_name: Mengyao full_name: Li, Mengyao last_name: Li - first_name: Mochen full_name: Jia, Mochen last_name: Jia - first_name: Christine full_name: Fiedler, Christine id: bd3fceba-dc74-11ea-a0a7-c17f71817366 last_name: Fiedler - first_name: Bingfei full_name: Nan, Bingfei last_name: 'Nan' - first_name: Dongwen full_name: Yang, Dongwen last_name: Yang - first_name: Lei full_name: Li, Lei last_name: Li - first_name: Zicheng full_name: Yuan, Zicheng last_name: Yuan - first_name: Hongzhang full_name: Song, Hongzhang last_name: Song - first_name: Yu full_name: Liu, Yu id: 2A70014E-F248-11E8-B48F-1D18A9856A87 last_name: Liu orcid: 0000-0001-7313-6740 - first_name: Maria full_name: Ibáñez, Maria id: 43C61214-F248-11E8-B48F-1D18A9856A87 last_name: Ibáñez orcid: 0000-0001-5013-2843 - first_name: Ziyu full_name: Wang, Ziyu last_name: Wang - first_name: Chongxin full_name: Shan, Chongxin last_name: Shan - first_name: Andreu full_name: Cabot, Andreu last_name: Cabot citation: ama: Zhao X, Li M, Jia M, et al. Low-dimensional structure modulation in Ag8SnSe6 for enhanced thermoelectric performance. Advanced Functional Materials. 2025;35(24). doi:10.1002/adfm.202421449 apa: Zhao, X., Li, M., Jia, M., Fiedler, C., Nan, B., Yang, D., … Cabot, A. (2025). Low-dimensional structure modulation in Ag8SnSe6 for enhanced thermoelectric performance. Advanced Functional Materials. Wiley. https://doi.org/10.1002/adfm.202421449 chicago: Zhao, Xueke, Mengyao Li, Mochen Jia, Christine Fiedler, Bingfei Nan, Dongwen Yang, Lei Li, et al. “Low-Dimensional Structure Modulation in Ag8SnSe6 for Enhanced Thermoelectric Performance.” Advanced Functional Materials. Wiley, 2025. https://doi.org/10.1002/adfm.202421449. ieee: X. Zhao et al., “Low-dimensional structure modulation in Ag8SnSe6 for enhanced thermoelectric performance,” Advanced Functional Materials, vol. 35, no. 24. Wiley, 2025. ista: Zhao X, Li M, Jia M, Fiedler C, Nan B, Yang D, Li L, Yuan Z, Song H, Liu Y, Ibáñez M, Wang Z, Shan C, Cabot A. 2025. Low-dimensional structure modulation in Ag8SnSe6 for enhanced thermoelectric performance. Advanced Functional Materials. 35(24), 2421449. mla: Zhao, Xueke, et al. “Low-Dimensional Structure Modulation in Ag8SnSe6 for Enhanced Thermoelectric Performance.” Advanced Functional Materials, vol. 35, no. 24, 2421449, Wiley, 2025, doi:10.1002/adfm.202421449. short: X. Zhao, M. Li, M. Jia, C. Fiedler, B. Nan, D. Yang, L. Li, Z. Yuan, H. Song, Y. Liu, M. Ibáñez, Z. Wang, C. Shan, A. Cabot, Advanced Functional Materials 35 (2025). date_created: 2025-01-26T23:01:50Z date_published: 2025-06-19T00:00:00Z date_updated: 2025-12-30T07:17:39Z day: '19' department: - _id: MaIb - _id: GradSch doi: 10.1002/adfm.202421449 external_id: isi: - '001398067000001' intvolume: ' 35' isi: 1 issue: '24' language: - iso: eng month: '06' oa_version: None publication: Advanced Functional Materials publication_identifier: eissn: - 1616-3028 issn: - 1616-301X publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: Low-dimensional structure modulation in Ag8SnSe6 for enhanced thermoelectric performance type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 35 year: '2025' ... --- _id: '13423' abstract: - lang: eng text: Supraspheres (SS) composed of hundreds to thousands of metal nanoparticles (NPs) and crosslinked by dithiol linkers are assembled into larger structures, which are subsequently converted into nanoporous metals (NMs). Conversion is achieved by heating which removes organic molecules stabilizing the NPs and allows for NP fusion. Heating of SS solutions leads to NMs of overall macroscopic dimensions; localized radiation using collimated electron beam is used to prepare metallized surface micropatterns. Depending on the composition of supraspherical precursors, nanoporous materials composed of up to three metals can be obtained. Strategies for controlling pore size and nanoscale surface roughness of these materials are discussed. article_processing_charge: No article_type: original author: - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn - first_name: Timothy P. full_name: Gray, Timothy P. last_name: Gray - first_name: Paul J. full_name: Wesson, Paul J. last_name: Wesson - first_name: Benjamin D. full_name: Myers, Benjamin D. last_name: Myers - first_name: Vinayak P. full_name: Dravid, Vinayak P. last_name: Dravid - first_name: Stoyan K. full_name: Smoukov, Stoyan K. last_name: Smoukov - first_name: Bartosz A. full_name: Grzybowski, Bartosz A. last_name: Grzybowski citation: ama: Klajn R, Gray TP, Wesson PJ, et al. Bulk synthesis and surface patterning of nanoporous metals and alloys from supraspherical nanoparticle aggregates. Advanced Functional Materials. 2008;18(18):2763-2769. doi:10.1002/adfm.200800293 apa: Klajn, R., Gray, T. P., Wesson, P. J., Myers, B. D., Dravid, V. P., Smoukov, S. K., & Grzybowski, B. A. (2008). Bulk synthesis and surface patterning of nanoporous metals and alloys from supraspherical nanoparticle aggregates. Advanced Functional Materials. Wiley. https://doi.org/10.1002/adfm.200800293 chicago: Klajn, Rafal, Timothy P. Gray, Paul J. Wesson, Benjamin D. Myers, Vinayak P. Dravid, Stoyan K. Smoukov, and Bartosz A. Grzybowski. “Bulk Synthesis and Surface Patterning of Nanoporous Metals and Alloys from Supraspherical Nanoparticle Aggregates.” Advanced Functional Materials. Wiley, 2008. https://doi.org/10.1002/adfm.200800293. ieee: R. Klajn et al., “Bulk synthesis and surface patterning of nanoporous metals and alloys from supraspherical nanoparticle aggregates,” Advanced Functional Materials, vol. 18, no. 18. Wiley, pp. 2763–2769, 2008. ista: Klajn R, Gray TP, Wesson PJ, Myers BD, Dravid VP, Smoukov SK, Grzybowski BA. 2008. Bulk synthesis and surface patterning of nanoporous metals and alloys from supraspherical nanoparticle aggregates. Advanced Functional Materials. 18(18), 2763–2769. mla: Klajn, Rafal, et al. “Bulk Synthesis and Surface Patterning of Nanoporous Metals and Alloys from Supraspherical Nanoparticle Aggregates.” Advanced Functional Materials, vol. 18, no. 18, Wiley, 2008, pp. 2763–69, doi:10.1002/adfm.200800293. short: R. Klajn, T.P. Gray, P.J. Wesson, B.D. Myers, V.P. Dravid, S.K. Smoukov, B.A. Grzybowski, Advanced Functional Materials 18 (2008) 2763–2769. date_created: 2023-08-01T10:30:57Z date_published: 2008-09-23T00:00:00Z date_updated: 2023-08-08T11:16:28Z day: '23' doi: 10.1002/adfm.200800293 extern: '1' intvolume: ' 18' issue: '18' keyword: - Electrochemistry - Condensed Matter Physics - Biomaterials - Electronic - Optical and Magnetic Materials language: - iso: eng month: '09' oa_version: None page: 2763-2769 publication: Advanced Functional Materials publication_identifier: eissn: - 1616-3028 issn: - 1616-301X publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: Bulk synthesis and surface patterning of nanoporous metals and alloys from supraspherical nanoparticle aggregates type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 18 year: '2008' ...