ELECTROCHEMICAL REDUCTION OF CARBON DIOXIDE TO FORMATE IN ACID ELECTROLYTE IN ACETYLENE BLACK GAS DIFFUSION ELECTRODE WITH A LEAD CATALYST

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详细

The possibility of electrosynthesis of formate from CO2 at a current density of 50–190 mA/cm2 in sulfuric acid aqueous solutions (pH 2–2.5) in a gas diffusion electrode with a lead electrocatalyst deposited on acetylene black was studied. It is shown that with an appropriate selection of the electrolyte composition, it is possible to carry out the electrosynthesis process with parameters that practically differ little from those in alkaline solutions. The highest current efficiency of 74% was obtained at a potential of -1.89 V, a current density of 150 mA/cm2 in an electrolyte of 0.5 M K2SO4 + 0.083 M H2SO4.

作者简介

G. Kolyagin

Institute of Chemistry and Chemical Technology SB RAS, Federal
Research Center "Krasnoyarsk Scientific Center of the SB RAS"

Email: kolyagin@icct.ru
Akademgorodok, 50/24, Krasnoyarsk, 660036, Russia

O. Taran

Institute of Chemistry and Chemical Technology SB RAS, Federal
Research Center "Krasnoyarsk Scientific Center of the SB RAS"

编辑信件的主要联系方式.
Email: kolyagin@icct.ru
Akademgorodok, 50/24, Krasnoyarsk, 660036, Russia

参考

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  10. Колягин, Г.А., Кенова, Т.А. Таран, О.П. Электрохимическое восстановление диоксида углерода до формиата в сажевом газодиффузионном электроде со свинцовым катализатором. Журн. Сиб. федер. универ. Химия. 2022. Т. 15. С. 601. [Kolyagin, G.A., Kenova, T.A., and Taran, O.P., Electrochemical reduction of carbon dioxide to formate in acetylene black gas diffusion electrode with a lead catalyst, J. Sib. Fed. Univ. Chem., 2022, vol. 15, p. 601.]
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