CO_2在p-SiC膜电极上的光电化学还原  

Photoelectrochemical Reduction of Carbon Dioxide at p-SiC Film Electrodes

作　　者：罗瑾[2,3] 林仲华[2,3] 桥本和仁[1] 藤嶋昭 田昭武[2,3] 

机构地区：[1]日本东京大学工学部 [2]厦门大学物理化学研究所 [3]厦门大学固体表面物理化学国家重点实验室

出　　处：《厦门大学学报（自然科学版）》1992年第5期559-561,共3页Journal of Xiamen University：Natural Science

摘　　要：近年来,CO_2的光电化学还原引起人们极大的兴趣,已有利用SiC粉末进行CO_2光催化还原的报道。本研究首次利用p-SiC膜光阴极还原CO_2,得到较高的CH_3OH产率。1 实验 在导电玻璃上采用水银光敏化CVD法制得微晶p-SiC膜,电极表面用4.The photoelectrochemical reduction of CO2 has been studied at a micro-crystalline p-SiC film electrode's in 0. 1 mol/l KHCO3. The onset potential of CO2 photoelec-trochemical reduction was -1.2V vs. SCE. CH3OH was the main product. The Faradaic efficiency of CH3OH was about 12. 9% at -1. 5 V vs. SCE,and the small quantities of CH4 and CO were also detected. The productivities for CH3OH and CO as the function of the applied potential and coulomb quantity for reduction have been determined.

关 键 词：CO2 光电化学还原 p-SiC膜电极 

分 类 号：O613.71[理学—无机化学]