Sn/Cu电极电化学还原CO_2的研究  

Electrochemical Reduction of CO_2 on Sn/Cu Electrode

作　　者：赵晨辰[1] 郭建伟[1] 王莉[1] 何向明[1] 王诚[1] 刘志祥[1] 

机构地区：[1]清华大学核能与新能源技术研究院,北京100084

出　　处：《电化学》2012年第2期169-173,共5页Journal of Electrochemistry

基　　金：国家自然科学基金项目(No.50873050);国家973项目(No.2011CB935902;No.2012CB215500)资助

摘　　要：采用电沉积法制备Sn/Cu电极,由SEM观察并研究了电沉积电流密度对电极形貌的影响.在碱性三电极体系中考察了Sn/Cu电极对析氢、CO2还原的影响.发现10 mA.cm-2和15 mA.cm-2电沉积电流密度下制得的电极活性较高,尤以15 mA.cm-2时电极性能更佳,并指出了电还原CO2关键材料的结构特性.The Sn /Cu electrodes were prepared by electroplating method and their morphologies under different galvanization current densities were determined by SEM.In alkali,the effects of Sn / Cu electrodes on the activities towards hydrogen evolution and electrochemical reduction of CO 2 were investigated in alkaline solutions using a three-electrode system.These results indicated that the Sn / Cu electrodes prepared at 10 mA.cm-2 and 15 mA.cm-2 showed good activities,while that prepared at 15 mA.cm-2 was even better in activities.The synergetic structure of the Sn / Cu electrode to be beneficial to electrochemical reduction of CO 2 has been pointed out.

关 键 词：Sn/Cu电极 CO2电化学还原 

分 类 号：O646.54[理学—物理化学]