Hollow Nickel-Cobalt-Iron Phosphide Nanoprisms for Efficient Oxygen Evolution.

Authors

Ricky Yu-Syun Fan, Yao-Ying Chuang, Eng Zhi Sim, Yi-Chen Tsai, Wan-Tien Huang, Kien Voon Kong

Published in

ChemSusChem. Volume 19. Issue 12. Pages e70838. Jun 26, 2026.

Abstract

Developing efficient electrocatalysts for the oxygen evolution reaction (OER) is essential for sustainable water electrolysis. Herein, a hollow trimetallic phosphide catalyst (NiCoFe-P) was synthesized from Prussian blue analog nanoprisms through a self-templated etching process followed by gas-phase phosphorization. The resulting hierarchical hollow architecture with uniformly distributed Ni, Co, Fe, and P species provides abundant active sites and facilitates efficient mass and charge transport. The catalyst exhibited excellent OER performance in alkaline electrolyte, delivering a low overpotential of 274 mV at 10 mA cm^-2, a small Tafel slope of ≈51 mV dec^-1, and outstanding durability over 100 h. Density functional theory calculations combined with operando Raman spectroscopy reveal that optimized Fe─O electronic coupling facilitates the formation of oxygen intermediates, thereby enhancing OER kinetics.

PMID:
42455522
Bibliographic data and abstract were imported from PubMed on 15 Jul 2026.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.