Rational Design of β-MnO 2 via Ir/Ru Co-substitution for Enhanced Oxygen Evolution Reaction in Acidic Media
Kunming Institute of Precious Metals · Shenzhen University · +6 more institutions
Abstract
The efficiency of the oxygen evolution reaction (OER) in acidic media is severely limited by the poor stability, low activity, and high cost of available catalysts. Enhancing intrinsic activity while maintaining stability and reducing reliance on precious metals is crucial. The typical adsorbate evolution mechanism (AEM) leads to high overpotentials and low activity, making the transition to alternative mechanisms, such as the lattice oxygen mechanism (LOM) or oxide path mechanism (OPM), highly desirable due to their lower overpotentials. Here, we combine density functional theory (DFT) calculations with experimental validation to enhance the activity and stability of β-MnO2 via co-substitution with ruthenium…
Citation impact
- FWCI
- 12.58
- Percentile
- 100%
- References
- 57
Authors
13Topics & keywords
- Overpotential
- Chemistry
- Oxygen evolution
- Tafel equation
- Density functional theory
- Catalysis
- Ruthenium
- Transition metal