RuO2 electronic structure and lattice strain dual engineering for enhanced acidic oxygen evolution reaction performance
Harbin Institute of Technology · China Spallation Neutron Source · +12 more institutions
Abstract
Abstract Developing highly active and durable electrocatalysts for acidic oxygen evolution reaction remains a great challenge due to the sluggish kinetics of the four-electron transfer reaction and severe catalyst dissolution. Here we report an electrochemical lithium intercalation method to improve both the activity and stability of RuO 2 for acidic oxygen evolution reaction. The lithium intercalates into the lattice interstices of RuO 2 , donates electrons and distorts the local structure. Therefore, the Ru valence state is lowered with formation of stable Li-O-Ru local structure, and the Ru–O covalency is weakened, which suppresses the dissolution of Ru, resulting in greatly enhanced durability. Meanwhile,…
Citation impact
- FWCI
- 23.93
- Percentile
- 100%
- References
- 61
Authors
14Topics & keywords
- Oxygen evolution
- Catalysis
- Dissolution
- Electron transfer
- Electrochemistry
- Oxygen
- Intercalation (chemistry)
- Electronic structure