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Activating multimetallic phosphides via plasma-induced phosphorus vacancies for efficient water electrolysis
Yang Yang1, Zhi-Yuan Jiang1, Peng-Fei Guo1,2
1Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China. yyang399@sust.edu.cn.
Chemical Communications (Cambridge, England)
|April 23, 2026
Summary
A novel phosphorus-vacancy-rich multi-metal phosphide catalyst was created. This advanced catalyst shows excellent performance for oxygen evolution reaction and hydrogen evolution reaction in alkaline conditions.
Area of Science:
- Materials Science
- Electrochemistry
- Catalysis
Background:
- Developing efficient electrocatalysts is crucial for renewable energy technologies.
- Metal phosphides are promising candidates due to their tunable electronic properties.
Purpose of the Study:
- To fabricate and characterize a novel phosphorus-vacancy-rich multi-metal phosphide catalyst.
- To evaluate its electrocatalytic performance for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER).
Main Methods:
- Fabrication using transition-metal doping and plasma-enhanced chemical vapor deposition.
- Electrochemical testing in alkaline media to determine overpotentials for OER and HER.
Main Results:
- The NiFeWP(VP) catalyst achieved an overpotential of 144 mV for OER at 10 mA cm-2.
- The NiWP(VP) catalyst exhibited an HER overpotential of 111 mV at 10 mA cm-2.
Conclusions:
- The developed phosphorus-vacancy-rich multi-metal phosphide catalysts demonstrate significant potential for efficient electrocatalysis.
- These findings highlight the importance of vacancy engineering in designing advanced catalytic materials.
