材料科学
分解水
析氧
超亲水性
催化作用
电解质
化学工程
电解
制氢
双功能
吸附
氢
电解水
润湿
纳米技术
电极
电化学
复合材料
化学
物理化学
生物化学
有机化学
光催化
工程类
作者
Rongrong Deng,Qibo Zhang
标识
DOI:10.1002/aenm.202401444
摘要
Abstract The development of advanced electrocatalysts with exceptional performance at high current densities is pivotal for reducing electric energy consumption in industrial water splitting for hydrogen production. Herein, a flexible one‐step electrodeposition approach is developed to synthesize superhydrophilic 3D flower‐like clusters of Cu–Co–P nanosheets grown in situ on nickel foam (NF). Introducing Cu into Co–P causes strong electron interactions, forming an electronic configuration favorable for the adsorption and desorption of intermediates, which significantly improves the intrinsic catalytic activity. The as‐deposited Cu–Co–P/NF display notable bifunctional catalytic activity with low overpotentials of 259 and 65 mV for the oxygen and hydrogen evolution reactions, respectively, at 10 mA cm −2 . Superwetting 3D flower‐like nanostructures are conducive to the penetration of electrolytes and the rapid release of bubbles, enabling the efficient utilization of active sites and the timely release of bubble stress under high current densities. An assembled Cu–Co–P/NF(+, −) electrolyzer achieves an impressive voltage of 1.85 V at 500 mA cm −2 for water splitting and appreciable stability for over 220 h under simulated industrial conditions. This work offers an attractive strategy for regulating superaerophobic Co–P electrocatalysts for industrial water splitting, which can contribute to practical applications.
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