Journal
GREEN CHEMISTRY
Volume 23, Issue 15, Pages 5461-5466Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1gc01914g
Keywords
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Funding
- National Key R&D Program of China [2018YFB0605802]
- National Natural Science Foundation of China [21838010, 21890762, 21921005]
- Key Research Program of Chinese Academy of Science [ZDRW-ZS-2018-1-3]
- Program of Beijing Municipal Natural Science Foundation [2182071]
- International Partnership Program of Chinese Academy of Sciences [122111KYSB20190029]
- Instrument Developing Project of the Chinese Academy of Sciences [YJKYYQ20200062]
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A Cu-N-doped carbon nanotube with an unsaturated coordination Cu atom showed high CO faradaic efficiency in a wide potential range. The theoretical calculations found that the Cu-N-3 site facilitated the formation of COOH*, accelerating the CO2 electrochemical reduction.
A Cu-N-doped carbon nanotube with an unsaturated coordination Cu atom (Cu-N-3) was fabricated and it exhibited over 90% CO faradaic efficiency (FE) in a wide potential range from -0.42 to -0.92 V. The maximum CO FE can reach 98.7% with a high CO partial current density of 234.3 mA cm(-2) in a flow cell. Theoretical calculations elucidated that the Cu-N-3 site facilitated the formation of COOH*, thereby accelerating the CO2 electrochemical reduction.
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