期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 38, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202207279
关键词
Electrode Materials; Oxygen Evolution Reaction; Oxoanions; Oxyanions; Water Splitting
资金
- Deutsche Forschungsgemeinschaft (Germany's Excellence) [2008/1-390540038-UniSysCat]
- German Federal Ministry of Education and Research (BMBF) [03HY105C]
- German Federal Ministry of Education and Research [03EW0015A/B]
- Einstein Foundation Berlin/EC2/BIG-NSE
- Projekt DEAL
Adding (oxy)anions to the electrolyte opens up new possibilities for OER catalysis by tuning the electronic properties of the catalyst and changing its catalytic activity.
As the kinetically demanding oxygen evolution reaction (OER) is crucial for the decarbonization of our society, a wide range of (pre)catalysts with various non-active-site elements (e.g., Mo, S, Se, N, P, C, Si horizontal ellipsis ) have been investigated. Thermodynamics dictate that these elements oxidize during industrial operation. The formed oxyanions are water soluble and thus predominantly leach in a reconstruction process. Nevertheless, recently, it was unveiled that these thermodynamically stable (oxy)anions can adsorb on the surface or intercalate in the interlayer space of the active catalyst. There, they tune the electronic properties of the active sites and can interact with the reaction intermediates, changing the OER kinetics and potentially breaking the persisting OER *OH/*OOH scaling relations. Thus, the addition of (oxy)anions to the electrolyte opens a new design dimension for OER catalysis and the herein discussed observations deepen the understanding of the role of anions in the OER.
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