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Polymer-Supported Liquid Layer Electrolyzer Enabled Electrochemical CO2 Reduction to CO with High Energy Efficiency.
- Source :
- ChemistryOpen; Jun2021, Vol. 10 Issue 6, p639-644, 6p
- Publication Year :
- 2021
-
Abstract
- The electrochemical conversion of carbon dioxide (CO<subscript>2</subscript>) to carbon monoxide (CO) is a favorable approach to reduce CO<subscript>2</subscript> emission while converting excess sustainable energy to important chemical feedstocks. At high current density (>100 mAcm-2), low energy efficiency (EE) and unaffordable cell cost limit the industrial application of conventional CO<subscript>2</subscript> electrolyzers. Thus, a crucial and urgent task is to design a new type of CO<subscript>2</subscript> electrolyzer that can work efficiently at high current density. Here we report a polymer-supported liquid layer (PSL) electrolyzer using polypropylene non-woven fabric as a separator between anode and cathode. Ag based cathode was fed with humid CO<subscript>2</subscript> and potassium hydroxide was fed to earthabundant NiFe-based anode. In this configuration, the PSL provided high-pH condition for the cathode reaction and reduced the cell resistance, achieving a high full cell EE over 66% at 100 mAcm-2. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 21911363
- Volume :
- 10
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- ChemistryOpen
- Publication Type :
- Academic Journal
- Accession number :
- 151298070
- Full Text :
- https://doi.org/10.1002/open.202100084