Interstitial‐Substitutional‐Mixed Solid Solution of RuO 2 Nurturing a New Pathway Beyond the Activity‐Stability Linear Constraint in Acidic Water Oxidation
Beijing Institute of Technology · Hainan University · +1 more institution
Abstract
Abstract The acidic oxygen evolution reaction (OER) electrocatalysts for proton exchange membrane electrolyzer (PEMWE) often face a trade‐off between activity and stability due to inherent linear relationship and overoxidation of metal atoms in highly oxidative environments, while following the conventional adsorbate evolution mechanism (AEM). Herein, a favorable AEM‐derived proton acceptor‐electron donor mechanism (PAEDM) is proposed in RuO 2 by constructing interstitial‐substitutional mixed solid solution structure (denoted as C,Ta‐RuO 2 ), which can effectively break the activity‐stability trade‐off of RuO 2 in acidic OER. In situ spectroscopy experiments and theoretical calculations reveal that the…
Citation impact
- FWCI
- 13.61
- Percentile
- 100%
- References
- 59
Authors
9Topics & keywords
- Overpotential
- Water splitting
- Oxygen evolution
- Electrolysis of water
- Materials science
- Catalysis
- Electron transfer
- Acceptor