电解
纳米颗粒
材料科学
电极
法拉第效率
化学工程
涂层
催化作用
电化学
碳纤维
选择性
氧化物
无机化学
图层(电子)
化学
电解质
纳米技术
冶金
复合材料
有机化学
工程类
物理化学
复合数
作者
Ziyi Zhao,Xiaotong Li,Jianghao Wang,Xiangzhou Lv,Hao Bin Wu
标识
DOI:10.1016/j.jcou.2021.101741
摘要
Electrochemical reduction of carbon dioxide to value-added fuels offers a promising method to solve increasingly serious environmental problems and alleviate energy crisis. Herein, we report a facile method by coating Cu electrode with CeO2 nanoparticles to largely enhance the C2+ products selectivity during CO2 electroreduction. The Faradaic efficiency of C2+ products for optimal CeO2-coated Cu electrode reached a high value of 61 % at -1.05 V vs RHE, and exhibited good stability for over 9 h of CO2 electrolysis. The CeO2 nanoparticles were found to induce oxidative corrosion of the Cu foil, leading to a CuOx layer in contact with the CeO2 nanoparticles. The interface between CeO2 nanoparticles and oxide-derived Cu might be attributed to the enhanced catalytic activity for C2+ products by promoting the CC coupling process.
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