NiFe on CeO₂, TiO₂, and ZrO₂ Supports as Efficient Oxygen Evolution Reaction Catalysts in Alkaline Media.

ABSTRACT: The high cost and low energy efficiency of conventional water electrolysis methods continue to restrict the widespread adoption of green hydrogen. Anion exchange membrane (AEM) water electrolysis is a promising technology that can produce hydrogen using cost-effective transition-metal catalysts at high energy efficiency. Herein, we investigate the catalytic activity of nickel and iron nanoparticles dispersed on metal-oxide supports for the oxygen evolution reaction (OER), employing electrochemical testing with an anion exchange ionomer to evaluate their potential for application in AEM electrolyzers. We report the electrochemical performance of NiFe nanoparticles of varying Ni:Fe ratios on CeO₂ for OER reaction, assessing the overpotential, Tafel slope, and electrochemical stabi

SUBMITTER: Varghese NK 

PROVIDER: S-EPMC11902787 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature