Abstract
Electrochemical CO2 reduction (eCO2R) by direct introduction of 60% air-containing CO2 mixed gas was demonstrated using a porous Cu network cathode formed on a hydrophobic gas diffusion layer (Cu/P-GDL). Cu/P-GDL exhibited eCO2R using the mixed gas with a remarkable faradaic efficiency of 85% for the production of C2+ chemicals, whereas a Cu cathode constructed on a conventional carbon gas diffusion layer (Cu/C-GDL) produced neither eCO2R products nor H2. Furthermore, the electrolyzer with Cu/P-GDL and optimized anode configuration achieved a partial current density of 132 mA cm−2 for C2+ chemicals even in the presence of 12% O2. Demonstration of eCO2R with impure CO2 gas would greatly expand its future applications.
Original language | English |
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Pages (from-to) | 11188-11191 |
Number of pages | 4 |
Journal | Chemical Communications |
Volume | 59 |
Issue number | 75 |
DOIs | |
Publication status | Published - Aug 21 2023 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Catalysis
- Ceramics and Composites
- General Chemistry
- Surfaces, Coatings and Films
- Metals and Alloys
- Materials Chemistry