铜业工程Issue(1)：95-103,9.DOI:10.3969/j.issn.1009-3842.2025.01.010
三维阵列CoOx/CeO2双功能催化剂的制备及其电解水性能研究
Preparation of Three-Dimensional Array CoOx/CeO2 Bifunctional Catalyst and Its Performance in Water Electrolysis
摘要
Abstract
Developing efficient,stable,and low-cost non-precious metal-based bifunctional electrocatalysts is crucial for hydrogen pro-duction through water electrolysis.Nanoarray structure electrocatalysts have attracted widespread attention due to their structural ad-vantages.In this study,three-dimensional nano-sheet arrays of CoOx/CeO2 were in situ grown on nickel foam(NF)using a solution com-bustion method.The results showed that CoOx/CeO2 catalyst,in direct contact with the conductive nickel foam substrate,exhibited a positive synergistic effect between Ce and Co,an open three-dimensional nano-sheet structure,and excellent catalytic activity for both the hydrogen evolution reaction(HER)and the oxygen evolution reaction(OER),with overpotentials of only 48 and 267 mV at 10 mA/cm2,respectively.Furthermore,the catalyst could operate stably in an electrolyte at 100 mA/cm2 for 100 h with almost no change in current density.This work not only demonstrated the enormous application potential of Co-based electrocatalysts in water electrolysis but also provided a feasible strategy for preparing efficient and stable Co-based catalysts.关键词
纳米片阵列结构/双功能催化剂/电解水/电子结构调节Key words
nano-sheet array structure/bifunctional catalyst/electrolysis of water/electronic structure modulation分类
化学化工引用本文复制引用
邓越,王婷婷,孙清鹏,孙金峰,张少飞..三维阵列CoOx/CeO2双功能催化剂的制备及其电解水性能研究[J].铜业工程,2025,(1):95-103,9.基金项目
国家自然科学基金项目(52101251) （52101251）
河北省高等学校青年拔尖人才项目(BJK2023058)资助 （BJK2023058）
