通过浸渍腐蚀法制备FeNi LDH用于电解水OER催化剂的应用研究  

Excellent FeNi LDH Arrays Catalyst for OER Obtained by Slight Immersion Corrosion

作　　者：于亚楠 李其 杨先龙 徐滨 周瑞 Yu Yanan;Li Qi;Yang Xianlong;Xu Bin;Zhou Rui(Sichuan Energy Internet Research Institute,Tsinghua University,Sichuan,610000;CVC Testing Technology Co.,Ltd.,Guangdong,510000)

机构地区：[1]清华四川能源互联网研究院,四川610000 [2]威凯检测技术有限公司,广东510000

出　　处：《当代化工研究》2025年第3期124-127,共4页Modern Chemical Research

基　　金：清华四川能源互联网(种子计划)“电制氢高熵催化剂的研制及应用”(项目编号:XMSB2023110279)。

摘　　要：合理设计和开发基于非贵金属元素的析氧反应(Oxygen Evolution Reaotion,OER)新型催化剂对于能量转换和储存具有重要价值。在此,首次报道了一种经济高效、易于合成的浸入腐蚀法,可以将多孔泡沫镍转化为高催化活性和稳定性的OER电极。实验表明,通过简单的浸没腐蚀手段获得的疏气电极对OER表现出优异的催化活性,在仅271 mV的过电势下可获得100 mA·cm^(-2)的电流密度,塔菲尔斜率低至30.1 mV·dec^(-1),并且催化电极展示出极佳的稳定性,该Fe掺杂NiOOH的合成方法有望广泛应用于电解水领域,推动氢能产业的发展。Rational design and development of novel catalysts based on non-precious elements for the oxygen evolution reaction(OER)are of great value to energy conversion and storage.Herein,we firstly present a cost-effective,easy-synthesis immersion corrosion method,which can transform porous nickel foam into highly efficient and stable electrodes for OER.Ultrathin nickel-iron layered double oxyhydroxide array is obtained by immersing the nickel foam into a solution containing divalent iron cations at ambient temperature.The aerophobic electrode obtained through a simple immersion corrosion technique exhibits excellent catalytic activity towards OER,which only requires an overpotential of 271 mV to obtain a current density of 100 mA·cm^(-2) with a low Tafel slope of 30.1 mV·dec^(-1) and remarkable stability.The compelling synthesis method of Fe-doped NiO-OH is expected to be extensively applied to electrolysis water.

关 键 词：水分解 析氧反应 层状羟基氧化物 

分 类 号：TQ[化学工程]