Phase Engineering Facilitates O–O Coupling via Lattice Oxygen Mechanism for Enhanced Oxygen Evolution on Nickel–Iron Phosphide
Xiamen University · Collaborative Innovation Center of Chemistry for Energy Materials · +2 more institutions
Abstract
Nickel–iron-based catalysts are recognized for their high efficiency in the oxygen evolution reaction (OER) under alkaline conditions, yet the underlying mechanisms that drive their superior performance remain unclear. Herein, we revealed the molecular OER mechanism and the structure-intermediate-performance relationship of OER on a phosphorus-doped nickel–iron nanocatalyst (NiFeP). NiFeP exhibited exceptional activity and stability with an overpotential of only 210 mV at 10 mA cm–2 in 1 M KOH and a cell voltage of 1.68 V at 1 A cm–2 in anion exchange membrane water electrolyzers. The evolution of active sites and intermediates during OER on NiFeP was in situ probed and correlated using shell-isolated…
Citation impact
- FWCI
- 12.97
- Percentile
- 100%
- References
- 46
Authors
8- ZQZhengxin Qian
Xiamen University, Collaborative Innovation Center of Chemistry for Energy Materials
- GLGe-Hao Liang
Xiamen University, Collaborative Innovation Center of Chemistry for Energy Materials
- LSLiangfei Shen
Xiamen University, Collaborative Innovation Center of Chemistry for Energy Materials
- GZGe Zhang
Xiamen University, Collaborative Innovation Center of Chemistry for Energy Materials
- SZShisheng Zheng
Xiamen University, Collaborative Innovation Center of Chemistry for Energy Materials
Topics & keywords
- Oxygen evolution
- Chemistry
- Overpotential
- Nickel
- Catalysis
- Phosphide
- Electrochemistry
- Inorganic chemistry
- Clean water and sanitation