Journal of Jishou University(Natural Sciences Edition)

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Electrochemical Reduction of CO2 at Copper Nanoparticles Cathode in Ionic Liquid BMIMBF4:Synthesis of Dimethyl Carbonate

YUAN Chuping,LI Sue,ZHANG Yuting,FENG Qiuju,LIU Suqin   

  1. (1.College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China;2.College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China)
  • Online:2019-03-25 Published:2019-04-30
  • About author:FENG Qiuju,Tel. +86 743 856 3911;fax +86 743 856 3911;E-mail address
  • Supported by:

    National Natural Science Foundation of China (21402063,21476095)


New catalysts are needed to achieve lower overpotentials for desirable products during the electroreduction of CO2.In this study,copper nanoparticles were obtained by electrochemical method.These obtained electrodes were characterized by XRD,SEM and TEM.The electrochemical properties of the obtained electrode for electrocatalytic reduction of  CO2 in the ionic liquid,1-butyl-3-methylimidazolium- tetrafluoborate (BMIMBF4),have been evaluated by cyclic voltammogram and potentiostatic electrolysis.Results showed that,the reduction peak of  CO2 appeared at -1.7 (vs. Ag) which was more positive 0.1 V than that obtained on copper electrode,meanwhile,the current density was 12 mA higher.In addition,the electrolysis experiments have been carried out under mild conditions without any toxic solvents,catalysts and supporting electrolytes,affording the dimethyl carbonate in 87% yield.

Key words: copper nanoparticles electrode, carbon dioxide, electrocatalytic, dimethyl carbonate

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