CO2 reduction on Cu/C used as a cathode in a polymeric electrolyte reactor - Fuel cell type

Author(s)

Lima, Mariana ^[1] ; Godoi, Camila M. ^[1] ; Santos, Monique C. L. ^[1] ; Nandenha, Julio ^[1] ; Neto, Almir O. ^[1] ; De Souza, Rodrigo F. B. ^[1]

Affiliation

^[1] Ctr Celula Combustivel & Hidrogenio, Inst Pesquisas Energet & Nucl, IPEN CNEN SP, Av Prof Lineu Prestes 2242, Cidade Univ, BR-05508000 Sao Paulo, SP - Brazil

• Document type: Journal article
• Source: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY; v. 47, n. 6, p. 4010-4017, JAN 19 2022.
• Web of Science Citations: 0

Abstract

CO2 is one of the leading greenhouse gases, so studies that turn this gas into higher value-added products, that function as simpler and cheaper hydrogen stores, as an alcohols, are extremely important. In this work we using a polymeric Electrolyte Reactor-fuel cell type supplied with H-2 on platinum anode and dry CO2 in the cathode with a copper-carbon electrocatalyst. Copper nanoparticles supported on carbon Vulcan XC72 were produced by the sodium borohydride reduction method. The XRD revealed the presence of two different phases, CuO and Cu2O. In addition, the TEM images revealed agglomerates presence. The water, formaldehyde, methanol, methane, formic acid, dimethyl ether, oxalic acid, dimethyl carbonate, and ethylene-glycol were observed by differential mass spectroscopy on line with the reaction and the onset potential for each product and these results were confirmed by infrared spectroscopy - ATR-FTIR setup. This work showed the mapping CO2 reduced compounds for onset potential proposing some contributions to the literature. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 17/11937-4 - A sustainable path to methane conversion by advanced electrochemical technologies
• Grantee: Fabio Coral Fonseca
• Support Opportunities: Research Grants - Research Centers in Engineering Program