电沉积法制备Cu_(2)O催化CO_(2)制醇类燃料的研究  

Electrodeposition preparation of Cu_(2)O-based catalyst for CO_(2)to alcoholic fuels

作　　者：雷涛宁 党琪 吴桐 吴雲 余静怡 LEI Tao-ning;DANG Qi;WU Tong;WU Yun;YU Jing-yi(China-UK Low Carbon College,Shanghai Jiao Tong University,Shanghai 201306,China)

机构地区：[1]上海交通大学中英国际低碳学院,上海201306

出　　处：《现代化工》2024年第2期191-198,共8页Modern Chemical Industry

基　　金：上海交通大学科研启动基金(WF220428003)。

摘　　要：采用电沉积法在硫酸铜加乳酸的体系下制备氧化亚铜(Cu_(2)O)薄膜催化剂,通过不同电极基底探究了其空间结构及化学组成对电催化反应性能的影响。在此基础上,利用泡沫铜三维多孔结构及Cu-Cu_(2)O协同作用制备了Cu_(2)O薄膜催化电极(Cu-foam@Cu_(2)O-film),提高Cu_(2)O对醇类产物的选择性和催化剂稳定性。结果表明,在0.5 mol/L KHCO_(3)电解液及-0.9 V vs.Ag/AgCl电位下,醇类总法拉第效率为33.2%,相比于传统碳纸基底电极(Carbon@Cu_(2)O-film)提高了近3倍。Cuprous oxide(Cu_(2)O)film catalyst is prepared via electrodeposition method under copper sulfate/lactic acid system.The influences of the space structure and chemical composition of the electrode on electrocatalysis reaction performance are revealed through the comparison of different electrode substrates.On this base,Cu_(2)O film catalytic electrode(Cu-foam@Cu_(2)O-film)is prepared by means of three dimensional porous structure of foam copper and synergistic effect of Cu-Cu_(2)O,in order to improve the selectivity of Cu_(2)O on alcoholic products and the stability of the catalyst.It is indicated that at-0.9 V vs.Ag/AgCl in 0.5 mol·L-1 KHCO_(3) electrolyte,the Faradaic efficiency of methanol and ethanol is 33.2%,nearly triple that over traditional carbon paper substrate electrode.

关 键 词：氧化亚铜 电沉积法 电化学 催化 二氧化碳 甲醇 乙醇 

分 类 号：TM911.4[电气工程—电力电子与电力传动]