Tuning Ru–O Coordination for Switching Redox Centers in Acidic Oxygen Evolution Electrocatalysis
Jilin University · Division of Materials Science and Engineering · +4 more institutions
Abstract
Abstract Avoiding lattice oxygen involvement (oxygen redox) while promoting the coupling of adjacent adsorbed oxygen (metal redox) during the acidic oxygen evolution reaction (OER) is essential for gaining high activity and robust stability in RuO 2 ‐based catalysts but remains elusive. Here, we present a precise strategy to selectively activate the metal redox process while suppressing the undesired oxygen redox pathway by fine‐tuning the Ru–O coordination number in amorphous RuO x . The optimized catalyst exhibits outstanding acidic OER performance, achieving a low overpotential of 215 mV at 10 mA cm −2 and maintaining stability for 300 h with a negligible degradation rate of 100 µV h −1 . X‐ray absorption…
Citation impact
- FWCI
- 12.48
- Percentile
- 100%
- References
- 39
Authors
10- YMYajing Mu
Jilin University, Division of Materials Science and Engineering
- JFJinchang Fan
Jilin University, Division of Materials Science and Engineering
- TGTianyi Gao
Jilin University, Division of Materials Science and Engineering
- LWLina Wang
Jilin University, Jilin Medical University, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
- LZLei Zhang
Jilin University, Jilin Medical University, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
Topics & keywords
- Redox
- Catalysis
- Overpotential
- Chemistry
- Oxygen evolution
- Oxygen
- Electrocatalyst
- Inorganic chemistry
- Affordable and clean energy