High-Entropy Alloy with Mo-Coordination as Efficient Electrocatalyst for Oxygen Evolution Reaction
Kunming University of Science and Technology · City University of Hong Kong · +1 more institution
Abstract
Electrochemical hydrolytic hydrogen production is the most promising method for renewable energy storage and conversion. However, the kinetic slow oxygen evolution reaction (OER) limits the development of water electrolysis at the anode. The state-of-the-art OER catalysts face a dilemma of high content of noble metals and low OER activities. Herein, a strategy for achieving efficient and stable high-entropy alloy (HEA) catalysts by Mo-coordination is reported. The earth-abundant FeCoNiMo HEA catalyst provides an overpotential as low as 250 mV at the current density of 10 mA cm–2 in alkaline medium, which is 89 mV lower than that of state-of-the-art IrO2. The turnover frequency of 0.051 s–1 at the overpotential…
Citation impact
- FWCI
- 13.44
- Percentile
- 100%
- References
- 43
Authors
6- YMYunjie Mei
Kunming University of Science and Technology
- YFYuebin Feng
Kunming University of Science and Technology
- CZChengxu ZhangCorresponding
Kunming University of Science and Technology, City University of Hong Kong, City University of Hong Kong, Shenzhen Research Institute
- YZYue Zhang
Kunming University of Science and Technology
- QQQianglong Qi
Kunming University of Science and Technology
Topics & keywords
- Overpotential
- Oxygen evolution
- Catalysis
- Electrocatalyst
- Water splitting
- Chemistry
- Electrolysis of water
- Hydrogen production
- Affordable and clean energy