Journal
SCIENCE CHINA-CHEMISTRY
Volume 61, Issue 2, Pages 228-235Publisher
SCIENCE PRESS
DOI: 10.1007/s11426-017-9118-6
Keywords
CO2 reduction; electrocatalyst; ionic liquid; porous carbon; green chemistry
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Funding
- National Natural Science Foundation of China [21673248, 21533011]
- National Key Research and Development Program of China [2017YFA0403102]
- Chinese Academy of Sciences [QYZDY-SSW-SLH013]
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Electrocatalytic reduction of CO2 is a promising route for energy storage and utilization. Herein we synthesized SnO2 nanosheets and supported them on N-doped porous carbon (N-PC) by electrodeposition for the first time. The SnO2 and N-PC in the SnO2@N-PC composites had exellent synergistic effect for electrocatalytic reduction of CO2 to HCOOH. The Faradaic efficiency of HCOOH could be as high as 94.1% with a current density of 28.4 mA cm(-2) in ionic liquid-MeCN system. The reaction mechanism was proposed on the basis of some control experiments. This work opens a new way to prepare composite electrode for electrochemical reduction of CO2.
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