Journal ArticleDOI
CO2 electroreduction to ethylene via hydroxide-mediated copper catalysis at an abrupt interface
Cao-Thang Dinh,Thomas Burdyny,Golam Kibria,Ali Seifitokaldani,Christine M. Gabardo,F. Pelayo García de Arquer,Amirreza Kiani,Jonathan P. Edwards,Phil De Luna,Oleksandr S. Bushuyev,Chengqin Zou,Chengqin Zou,Rafael Quintero-Bermudez,Yuanjie Pang,David Sinton,Edward H. Sargent +15 more
TLDR
A copper electrocatalyst at an abrupt reaction interface in an alkaline electrolyte reduces CO2 to ethylene with 70% faradaic efficiency at a potential of −0.55 volts versus a reversible hydrogen electrode (RHE).Abstract:
Carbon dioxide (CO 2 ) electroreduction could provide a useful source of ethylene, but low conversion efficiency, low production rates, and low catalyst stability limit current systems. Here we report that a copper electrocatalyst at an abrupt reaction interface in an alkaline electrolyte reduces CO 2 to ethylene with 70% faradaic efficiency at a potential of −0.55 volts versus a reversible hydrogen electrode (RHE). Hydroxide ions on or near the copper surface lower the CO 2 reduction and carbon monoxide (CO)–CO coupling activation energy barriers; as a result, onset of ethylene evolution at −0.165 volts versus an RHE in 10 molar potassium hydroxide occurs almost simultaneously with CO production. Operational stability was enhanced via the introduction of a polymer-based gas diffusion layer that sandwiches the reaction interface between separate hydrophobic and conductive supports, providing constant ethylene selectivity for an initial 150 operating hours.read more
Citations
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Journal ArticleDOI
Copper adparticle enabled selective electrosynthesis of n-propanol
Jun Li,Fanglin Che,Yuanjie Pang,Chengqin Zou,Chengqin Zou,Jane Y. Howe,Thomas Burdyny,Thomas Burdyny,Jonathan P. Edwards,Yuhang Wang,Fengwang Li,Ziyun Wang,Phil De Luna,Cao-Thang Dinh,Tao-Tao Zhuang,Makhsud I. Saidaminov,Shaobo Cheng,Tianpin Wu,Y. Zou Finfrock,Y. Zou Finfrock,Lu Ma,S. H. Hsieh,S. H. Hsieh,Yi-Sheng Liu,Gianluigi A. Botton,Way-Faung Pong,Xi-Wen Du,Jinghua Guo,Tsun-Kong Sham,Edward H. Sargent,David Sinton +30 more
TL;DR: Copper adparticles are explored as highly active surfaces that convert CO to n-propanol with high selectivities, and adparticle-covered catalysts are formed in-situ by mediating catalyst growth with strong CO chemisorption.
Journal ArticleDOI
Chemical storage of renewable energy
Joel W. Ager,Alexei A. Lapkin +1 more
TL;DR: Dinh et al. (3) show that ethylene can be generated selectively via electrochemical CO2 reduction at rates that could yield a technologically feasible process.
Journal ArticleDOI
Introductory Guide to Assembling and Operating Gas Diffusion Electrodes for Electrochemical CO2 Reduction
Journal ArticleDOI
Unraveling Mechanistic Reaction Pathways of the Electrochemical CO2 Reduction on Fe–N–C Single-Site Catalysts
Wen Ju,Alexander Bagger,Xingli Wang,Yulin Tsai,Fang Luo,Tim Möller,Huan Wang,Jan Rossmeisl,Ana Sofia Varela,Peter Strasser +9 more
TL;DR: In this article, a joint experimental-computational mechanistic study of electrochemical reduction of CO2 to CH4, catalyzed by solid-state Fe-N-C catalysts, which feature atomically dispersed, catalytical...
Journal ArticleDOI
An overview of Cu-based heterogeneous electrocatalysts for CO2 reduction
TL;DR: In this article, a review of the recent progress of Cu-based heterogeneous electrocatalysts for CO2 reduction from 2013 to 2019 is presented, focusing on the recent development of oxide-derived, bimetallic Cu species.
References
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Progress and Perspectives of Electrochemical CO2 Reduction on Copper in Aqueous Electrolyte
Stephanie A. Nitopi,Erlend Bertheussen,Søren Bertelsen Scott,Xinyan Liu,Albert K. Engstfeld,Albert K. Engstfeld,Sebastian Horch,Brian Seger,Ifan E. L. Stephens,Ifan E. L. Stephens,Karen Chan,Karen Chan,Christopher Hahn,Christopher Hahn,Jens K. Nørskov,Jens K. Nørskov,Jens K. Nørskov,Thomas F. Jaramillo,Thomas F. Jaramillo,Ib Chorkendorff +19 more