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Ru-Co Pair Sites Catalyst Boosts the Energetics for the Oxygen Evolution Reaction.
- Source :
-
Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2022 Aug 08; Vol. 61 (32), pp. e202205946. Date of Electronic Publication: 2022 Jun 21. - Publication Year :
- 2022
-
Abstract
- Manipulating the coordination environment of the active center via anion modulation to reveal tailored activity and selectivity has been widely achieved, especially for carbon-based single-atom site catalysts (SACs). However, tuning ligand fields of the active center by single-site metal cation regulation and identifying the effects on the resulting electronic configuration is seldom explored. Herein, we propose a single-site Ru cation coordination strategy to engineer the electronic properties by constructing a Ru/LiCoO <subscript>2</subscript> SAC with atomically dispersed Ru-Co pair sites. Benefitting from the strong electronic coupling between Ru and Co sites, the catalyst possesses an enhanced electrical conductivity and achieves near-optimal oxygen adsorption energies. Therefore, the optimized catalyst delivers superior oxygen evolution reaction (OER) activity with low overpotential, the high mass activity of 1000 A g <subscript>oxide</subscript> <superscript>-1</superscript> at a small overpotential of 335 mV, and excellent long-term stability. It also exhibits rapid kinetics with superior rate capability and outstanding durability in a zinc-air battery.<br /> (© 2022 Wiley-VCH GmbH.)
Details
- Language :
- English
- ISSN :
- 1521-3773
- Volume :
- 61
- Issue :
- 32
- Database :
- MEDLINE
- Journal :
- Angewandte Chemie (International ed. in English)
- Publication Type :
- Academic Journal
- Accession number :
- 35638304
- Full Text :
- https://doi.org/10.1002/anie.202205946