电化学
电解质
电极
扩散
可逆氢电极
气体扩散
化学
法拉第效率
催化作用
气体扩散电极
氢
甲烷
金属
无机化学
分析化学(期刊)
化学工程
工作电极
色谱法
物理化学
热力学
有机化学
工程类
物理
作者
Kohjiro Hara,Noriyuki Sonoyama,Tadayoshi Sakata
出处
期刊:Studies in Surface Science and Catalysis
日期:1998-01-01
卷期号:: 577-580
被引量:8
标识
DOI:10.1016/s0167-2991(98)80825-2
摘要
The electrochemical reduction of CO2 under high pressure was carried out using various metal supported gas diffusion electrodes (GDEs). By using Pt supported GDE in reverse arrangement, in which the Pt catalyst layer of GDE is directed toward CO2 gas phase, methane was produced at faradaic efficiencies of 38.8 %, while in the normal arrangement in which the Pt catalyst layer of GDE is directed toward the electrolyte hydrogen was the main product. By using Ag and Pd supported GDEs, CO was produced at faradaic efficiencies of 57.5-86.0 %. The partial current density of CO formation at Ag supported GDE reached 3.0 A cm-2.
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