Analysis on the effect of operating conditions on electrochemical conversion of carbon dioxide to formic acid

Title
Analysis on the effect of operating conditions on electrochemical conversion of carbon dioxide to formic acid
Authors
김학윤최인수안상현황승준유성종한종희김지현박한수장종현김수길
Keywords
Carbon dioxide; Electrochemical conversion; Formic acid; Sn electrode
Issue Date
2014-10
Publisher
International journal of hydrogen energy
Citation
VOL 39, NO 29, 16506-16512
Abstract
Electrochemical reduction of CO2 to HCOOH was performed on a Sn electrode using a proton exchange membrane-embedded electrolysis cell. The effects of reaction conditions such as catholyte and anolyte types, reduction potential, catholyte pH, and reaction temperature on the amount of HCOOH and its faradaic efficiency were investigated. Four different electrolytes (KOH, KHCO3, KCl, KHSO4) were chosen as the candidate catholyte and anolyte; the most suitable electrolyte was chosen by monitoring the amount of HCOOH and faradaic efficiency. The effect of the pH of the selected catholyte on the conversion of CO2 to HCOOH was also investigated. In addition, the reaction temperature was varied and its effect was studied. From the observations made, we determined the optimal reaction conditions for the production of HCOOH via the electrochemical reduction of CO2 by a systematic approach.
URI
http://pubs.kist.re.kr/handle/201004/48392
ISSN
03603199
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KIST Publication > Article
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