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Preliminary study on electrochemical reduction of carbon dioxide on nickel and platinum electrodes

Song Shuang He Zhiqiao Ye Jiexu Chen Jianmeng

高技术通讯(英文版)2006,Vol.12Issue(3):333-336,4.
高技术通讯(英文版)2006,Vol.12Issue(3):333-336,4.

Preliminary study on electrochemical reduction of carbon dioxide on nickel and platinum electrodes

Preliminary study on electrochemical reduction of carbon dioxide on nickel and platinum electrodes

Song Shuang 1He Zhiqiao 1Ye Jiexu 1Chen Jianmeng1

作者信息

  • 1. Department of Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, P.R. China
  • 折叠

摘要

Abstract

The electrochemical reduction of carbon dioxide was investigated on nickel and platinum electrodes in 0.5 mol dm-3 KHCO3 solutions. The main products were formic acid and carbon monoxide during the electroreduction of CO2, and the Faradaic efficiency for this process depended on the characteristics of the electrode. At ambient temperature and pressure, the Faradaic efficiency was measured to be 8.6% and 2.5% respectively for the production of formic acid and CO with Pt electrode at -1.3V vs Ag/AgCl (saturated KCl). At this same potential, the Faradaic efficiency was measured to be 8.9% and 1.7%respectively with Ni electrode. Tafel plots showed that the electrochemical reduction of CO2 was not limited by the mass transfer process in the range of -0.8 to -1.2V vs Ag/AgCl (saturated KCl).

关键词

electrochemical reduction, CO2, KHCO3 aqueous solution, Ni electrode, Pt electrode

Key words

electrochemical reduction, CO2, KHCO3 aqueous solution, Ni electrode, Pt electrode

分类

化学化工

引用本文复制引用

Song Shuang,He Zhiqiao,Ye Jiexu,Chen Jianmeng..Preliminary study on electrochemical reduction of carbon dioxide on nickel and platinum electrodes[J].高技术通讯(英文版),2006,12(3):333-336,4.

基金项目

Supported by the National Natural Science Foundation of China (No. 50408024) and Zhejiang Provincial Natural Science Foundation of China (No.M203034). (No. 50408024)

高技术通讯(英文版)

OAEI

1006-6748

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