KIr4O8 Nanowires with Rich Hydroxyl Promote Oxygen Evolution Reaction in Proton Exchange Membrane Water Electrolyzer
Zhenyu Li,
Xiang Li,
Mengna Wang
et al.
Abstract:The sluggish kinetics for anodic oxygen evolution reaction (OER) and insufficient catalytic performance over the corresponding Ir‐based catalysts are still enormous challenges in proton exchange membrane water electrolyzer (PEMWE). Herein, we report that KIr4O8 nanowires anode catalyst with more exposed active sites and rich hydroxyl achieves a current density of 1.0 A/cm2 at 1.68 V and possesses excellent catalytic stability with 1230 h in PEMWE. Combining in situ Raman spectroscopy and differential electroch… Show more
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