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1 nm Tin Oxide Cluster for the Electrochemical Conversion of Carbon Dioxide to Formate at Low Overpotential.
- Source :
- International Journal of Energy Research; 3/12/2024, Vol. 2024, p1-10, 10p
- Publication Year :
- 2024
-
Abstract
- Due to its cost-effectiveness and high product selectivity, tin oxide has been regarded as a promising catalyst for the electrochemical conversion of CO<subscript>2</subscript> to formate. However, formate production is hindered by the high overpotential; there is a need to reduce the overpotential to enhance energy efficiency and lower electricity cost for the implementation of carbon utilization technology. Here, we report a facile synthesis method for 1 nm-sized SnO<subscript>2</subscript> cluster catalysts, which can be used for CO<subscript>2</subscript>-to-formate conversion. SnO<subscript>2</subscript> clusters were prepared through impregnation of porous carbon with a tin precursor solution. The SnO<subscript>2</subscript> clusters showed a low overpotential, generating a current density of 10 mA cm<superscript>-2</superscript> at a potential of -0.34 V vs. RHE in 1 M KOH. They also achieved high Faradaic efficiencies of 90.5% and 81.5% at 200 and 300 mA cm<superscript>−2</superscript>, respectively. Their electrocatalytic performance was strongly dependent on the annealing conditions, which affected the particle size, electrochemical active surface area, and metal oxidation state. This paper presents a versatile method for synthesizing metal oxide cluster catalysts, apart from providing insights into the catalytic activity for the electrochemical conversion of CO<subscript>2</subscript> to formate. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0363907X
- Volume :
- 2024
- Database :
- Complementary Index
- Journal :
- International Journal of Energy Research
- Publication Type :
- Academic Journal
- Accession number :
- 176041429
- Full Text :
- https://doi.org/10.1155/2024/1367542