Abstract
AbstractThe direct electrochemical conversion of CO2 to multi‐carbon products offers a promising pathway for producing value‐added chemicals using renewable electricity. However, producing ethanol remains a challenge because of the competitive ethylene formation and hydrogen evolution reactions. Herein, we propose an active hydrogen (*H)‐intermediate‐mediating strategy for ethanol electroproduction on a layered precursor‐derived CuAl2O4/CuO catalyst. The catalyst delivered a Faradaic efficiency of 70 % for multi‐carbon products and 41 % for ethanol at current density of 200 mA cm−2 and exhibited a continuous 150 h durability in a flow cell. The intensive spectroscopic studies combined with theoretical calculations revealed that the in situ generated CuAl2O4 could tailor *H intermediate coverage and the elevated *H coverage favors the hydrogenation of the *HCCOH intermediate, accounting for the increased yield of ethanol. This work directs a pathway for enhancing ethanol electroproduction from CO2 reduction by tailoring *H intermediate coverage.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
