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Oxygen Evolution Reaction
In article number 2209543, Lee, Cho, and co‐workers demonstrate that Ir doping (5 mol%) on inverse‐spinel NiFe2O4 (Ir‐NFO) provides extraordinary activity and robustness for oxygen evolution reaction in alkaline electrolysis. In situ X‐ray absorption spectroscopy and density functional theory calculations revealed that the Ir switches the main active reaction center.
The oxygen evolution reaction (OER) is crucial for producing sustainable energy carriers. Herein, Ir (5 mol.%) doped inverse‐spinel NiFe2O4 (Ir‐NFO) nanoparticles deposited on Ni foam (NF) by scalable solution casting are considered a promising OER electrocatalyst for industrial deployments. The Ir‐NFO/NF (with minimal lattice distortion by uniform Ir doping) provides an OER overpotential of 251 mV...
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