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Enhanced Ethanol Production from CO 2 Electroreduction at Micropores in Nitrogen‐Doped Mesoporous Carbon
Author(s) -
Song Yanfang,
Wang Shibin,
Chen Wei,
Li Shenggang,
Feng Guanghui,
Wei Wei,
Sun Yuhan
Publication year - 2020
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201902833
Subject(s) - microporous material , mesoporous material , carbon fibers , electrochemistry , ethanol , yield (engineering) , chemistry , nitrogen , catalysis , inorganic chemistry , chemical engineering , materials science , electrode , organic chemistry , composite number , engineering , metallurgy , composite material
Efficient formation of valuable multicarbon products in CO 2 electrochemical reduction is challenging, owing to the difficulty of C−C coupling. Medium micropores embedded in the channel walls of nitrogen‐doped ordered mesoporous carbon are found to capably promote ethanol production from CO 2 electroreduction. By scaling up the medium micropore content, the yield of ethanol is increased to 2.3 mmol g cat −1 h −1 , far outperforming previously reported state‐of‐the‐art electrocatalysts. The intrinsically higher activity is attributed to the desolvation effect induced by the medium micropores, facilitating the coupling reaction of C 1 intermediates to form ethanol.