Accelerated Proton Transfer in Asymmetric Active Units for Sustainable Acidic Oxygen Evolution Reaction

Deng, Liming; Hung, Sung‐Fu; Liu, Shuyi; Zhao, Sheng; Lin, Zih‐Yi; Zhang, Chenchen; Zhang, Ying; Wang, Ai‐Yin; Chen, Han‐Yi; Peng, Jian; Ma, Rongpeng; Jiao, Lifang; Hu, Feng; Li, Linlin; Peng, Shengjie

doi:10.1021/jacs.4c05070

articleJournal of the American Chemical SocietyAug 7, 2024GREEN OA

Accelerated Proton Transfer in Asymmetric Active Units for Sustainable Acidic Oxygen Evolution Reaction

LDLiming Deng SHSung‐Fu Hung SLShuyi Liu SZSheng Zhao ZLZih‐Yi Lin

Nanjing University of Aeronautics and Astronautics · National Yang Ming Chiao Tung University · +4 more institutions

PubMed

Indexed incrossrefpubmed

Abstract

The poor durability of Ru-based catalysts limits the practical application in proton exchange membrane water electrolysis (PEMWE). Here, we report that the asymmetric active units in Ru1–xMxO2 (M = Sb, In, and Sn) binary solid solution oxides are constructed by introducing acid-resistant p-block metal sites, breaking the activity and stability limitations of RuO2 in acidic oxygen evolution reaction (OER). Constructing highly asymmetric Ru–O–Sb units with a strong electron delocalization effect significantly shortens the spatial distance between Ru and Sb sites, improving the bonding strength of the overall structure. The unique two-electron redox couples at Sb sites in asymmetric active units trigger…

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142

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FWCI: 13.16
Percentile: 100%
References: 62

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Topics & keywords

Topics

Keywords

Chemistry
Proton
Electrolysis
Catalysis
Electrolysis of water
Oxygen evolution
Oxygen
Durability

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