ELECTROCHEMICAL REDUCTION OF CARBON DIOXIDE TO FORMATE IN ACID ELECTROLYTE IN ACETYLENE BLACK GAS DIFFUSION ELECTRODE WITH A LEAD CATALYST-Reference-Cited by-同舟云学术

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

Published:2023-10-01 Issue:10 Volume:59 Page:606-609
ISSN:0424-8570
Container-title:Электрохимия
language:
Short-container-title:Èlektrohimiâ

Author:

Kolyagin G. A.¹,Taran O. P.¹

Affiliation:

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

Abstract

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.

Publisher

The Russian Academy of Sciences

Reference11 articles.

1. Rabiee, H., Ge, L., Zhang, X., Hu, S., Li, M., and Yuan, Z., Gas diffusion electrodes (GDEs) for electrochemical reduction of carbon dioxide, carbon monoxide, and dinitrogen to value-added products: a review, Energy Environ. Sci., 2021, vol. 14, p. 1959.

2. Корниенко, В.Л., Колягин, Г.А., Таран, О.П. Электрокаталитическое восстановление диоксида углерода до муравьиной кислоты на газодиффузионных электродах на основе Sn и Bi в водных средах (обзор). Электрохимия. 2022. Т. 58. С. 443. [Kornienko, V.L., Kolyagin, G.A., and Taran, O.P., Electrocatalytic reduction of carbon dioxide to formic acid on Sn- and Bi-based gas-diffusion electrodes in aqueous media (a Review), Russ. J. Electrochem., 2022, vol. 58, p. 647.]

3. Yang, Z., Oropeza, F.E., and Zhang, K.H.L., P-block metal-based (Sn, In, Bi, Pb) electrocatalysts for selective reduction of CO2 to formate, APL Mater., 2020, vol. 8, p. 060901.

4. Chatterjee, S., Dutta, I., Lum, Y., Lai, Z., and Huang, K.-W., Enabling storage and utilization of low-carbon electricity: power to formic acid, Energy Environ. Sci., 2021, vol. 14, p. 1194.

5. Oßkopp, M., Lowe, A., Lobo, C.M.S., Baranyai, S., Khoza, T., Auinger, M., and Klemm, E., Producing formic acid at low pH values by electrochemical CO2 reduction, J. CO2 Utilization, 2022, vol. 56, p. 101823.