过电位
电催化剂
格式化
材料科学
二氧化碳电化学还原
无机化学
催化作用
电化学
阴极
阳极
铋
箔法
化学工程
化学
电极
冶金
复合材料
有机化学
一氧化碳
物理化学
工程类
作者
Weixin Lv,Jing Zhou,Jingjing Bei,Rui Zhang,Lei Wang,Qingping Xu,Wei Wang
标识
DOI:10.1016/j.apsusc.2016.10.017
摘要
Electrochemical reduction of carbon dioxide (CO2) to formate is energetically inefficient because high overpotential is required for reduction of CO2 to formate on most traditional catalysts. In this paper, a novel nano-sized Bi-based electrocatalyst deposited on a Cu foil has been synthesized, which can be used as a cathode for electrochemical reduction of CO2 to formate with a low overpotential (0.69 V) and a high selectivity (91.3%). The electrocatalyst can show excellent catalytic performance toward reduction of CO2 which can probably be attributed to the nano-sized structure and the surface oxide layer. The energy efficiency for reduction of CO2 to formate can reach to 50% when an IrxSnyRuzO2/Ti electrode is used as anode, it is one of the highest values found in the literatures and very practicable for sustainable fuel synthesis.
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