Operando Characterization of Fe in Doped Ni<sub><i>x</i></sub>(Fe<sub>1-<i>x</i></sub>)O<sub><i>y</i></sub>H<sub><i>z</i></sub> Catalysts for Electrochemical Oxygen Evolution.
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ABSTRACT: Iron-doped nickel oxyhydroxides, Nix(Fe1-x)OyHz, are among the most promising oxygen evolution reaction (OER) electrocatalysts in alkaline environments. Although iron (Fe) significantly enhances the catalytic activity, there is still no clear consensus on whether Fe directly participates in the reaction or merely acts as a promoter. To elucidate the Fe's role, we performed operando X-ray spectroscopy studies supported by DFT on Nix(Fe1-x)OyHz electrocatalysts. We probed the reversible changes in the structure and electronic character of Nix(Fe1-x)OyHz as the electrode po
SUBMITTER: Halldin Stenlid J
PROVIDER: S-EPMC11803719 | biostudies-literature | 2025 Feb
REPOSITORIES: biostudies-literature
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