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Hao J, Zhuang Z, Cao K, Gao G, Wang C, Lai F, Lu S, Ma P, Dong W, Liu T, Du M, Zhu H. Unraveling the electronegativity-dominated intermediate adsorption on high-entropy alloy electrocatalysts. Nat Commun 2022; 13:2662. [PMID: 35562523 PMCID: PMC9106752 DOI: 10.1038/s41467-022-30379-4] [Citation(s) in RCA: 109] [Impact Index Per Article: 54.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 04/22/2022] [Indexed: 01/17/2023] Open
Abstract
High-entropy alloys have received considerable attention in the field of catalysis due to their exceptional properties. However, few studies hitherto focus on the origin of their outstanding performance and the accurate identification of active centers. Herein, we report a conceptual and experimental approach to overcome the limitations of single-element catalysts by designing a FeCoNiXRu (X: Cu, Cr, and Mn) High-entropy alloys system with various active sites that have different adsorption capacities for multiple intermediates. The electronegativity differences between mixed elements in HEA induce significant charge redistribution and create highly active Co and Ru sites with optimized energy barriers for simultaneously stabilizing OH* and H* intermediates, which greatly enhances the efficiency of water dissociation in alkaline conditions. This work provides an in-depth understanding of the interactions between specific active sites and intermediates, which opens up a fascinating direction for breaking scaling relation issues for multistep reactions.
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Affiliation(s)
- Jiace Hao
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Zechao Zhuang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Kecheng Cao
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China
| | - Guohua Gao
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology, Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai, 200092, China
| | - Chan Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Feili Lai
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, Leuven, 3001, Belgium
| | - Shuanglong Lu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Piming Ma
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Weifu Dong
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Tianxi Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Mingliang Du
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Han Zhu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China.
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Zhou H, Bai T, Pan Y, Wei Y, Wang T. Facile synthesis of air-stable heterobimetallic osmium-silver hydride complexes. Dalton Trans 2021; 50:12093-12097. [PMID: 34519739 DOI: 10.1039/d1dt02619d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and characterization of air-stable heterobimetallic Os-Ag hydrides are described. All of the new heterobimetallic Os-Ag hydrides are neutral, and the in situ generated and presynthesized cis-[Os](H)-CC-R units in these frameworks act as organometallic bidentate chelating ligands coordinating with the AgPPh3 cation, which makes these complexes more stable. Our results provide a new synthetic route for the construction of stable heterobimetallic complexes.
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Affiliation(s)
- Haiyu Zhou
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Tongtong Bai
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Yanlin Pan
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Yongliang Wei
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Tongdao Wang
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
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Ayyappan R, Saha K, Grellier M, Clot E, Vendier L, Ghosh S, Sabo-Etienne S, Bontemps S. Impact of the Alkali Metal on the Structural and Dynamic Properties of the Anionic Pentahydride Ruthenium Complexes [M(THF) x][RuH 5(PCy 3) 2] (M = Li, Na, K). Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ramaraj Ayyappan
- LCC−CNRS, Université de Toulouse, CNRS, F-31077 CEDEX 4 Toulouse, France
| | - Koushik Saha
- LCC−CNRS, Université de Toulouse, CNRS, F-31077 CEDEX 4 Toulouse, France
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Mary Grellier
- LCC−CNRS, Université de Toulouse, CNRS, F-31077 CEDEX 4 Toulouse, France
| | - Eric Clot
- ICGM, Univ Montpellier, CNRS, ENSCM, 34000 Montpellier, France
| | - Laure Vendier
- LCC−CNRS, Université de Toulouse, CNRS, F-31077 CEDEX 4 Toulouse, France
| | - Sundargopal Ghosh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | | | - Sébastien Bontemps
- LCC−CNRS, Université de Toulouse, CNRS, F-31077 CEDEX 4 Toulouse, France
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Smith PW, Handford RC, Tilley TD. Heavy Tetrel Complexes of Ru Featuring Ru═E(R)X and Ru–E–R (E = Sn, Pb) Linkages. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00550] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Patrick W. Smith
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
| | - Rex C. Handford
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
| | - T. Don Tilley
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
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