One-Pot Solvothermal Synthesis of Carbon Black-Supported CuO for Catalysis of CO2 Electroreduction

Author(s)

Dias, Eduardo H. ; Da Silva, Gelson T. S. T. ; Da Cruz, Jean C. ; Ribeiro, Caue

• Document type: Journal article
• Source: CHEMELECTROCHEM; v. 9, n. 11, p. 7-pg., 2022-06-14.

Abstract

Here we propose a simple one-pot solvothermal method to synthesize well-dispersed CuO catalysts over carbon black surface for application in CO2 electrolysis. Although simple, the route produced catalysts with good performance even in lower CuO contents, increasing the efficiency of the catalytic layer. Films prepared by straightforward dropping on fluorine tin oxide (FTO) substrates were stable (up to 30 hours), showing good activity for CO2 reduction reaction (CO2RR) and controlling the competitive H-2 evolution to preferentially form CO2 reduction products (CO, formic acid, ethanol, and acetic acid). The results showed values of almost 50 % of faradaic efficiency for products of CO2 reduction, comparable with other more elaborated catalysts reported in the literature, even utilizing cheap support, easy synthesis, and lower potentials. (AU)

• FAPESP's process: 20/15230-5 - Research Centre for Greenhouse Gas Innovation - RCG2I
• Grantee: Julio Romano Meneghini
• Support Opportunities: Research Grants - Research Centers in Engineering Program
• FAPESP's process: 19/10689-2 - Preparation of reaction systems for photocatalytic methane-to-methanol selective oxidation
• Grantee: Eduardo Henrique Dias
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• FAPESP's process: 14/50279-4 - Brasil Research Centre for Gas Innovation
• Grantee: Julio Romano Meneghini
• Support Opportunities: Research Grants - Research Centers in Engineering Program
• FAPESP's process: 18/01258-5 - Novel chemical catalytic and photocatalytic processes for the direct conversion of methane and CO2 to products
• Grantee: José Maria Correa Bueno
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
• Grantee: Elson Longo da Silva
• Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC