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
In Situ Carbon Encapsulation Confined Nickel-Doped Indium Oxide Nanocrystals for Boosting CO2 Electroreduction to the Industrial Level
Zhipeng Chen,Zhipeng Chen,Guang Yu,Bin Li,Xinxin Zhang,Mingyang Jiao,Nailiang Wang,Xiangping Zhang,Licheng Liu +8 more
TL;DR: In this paper, the reaction current density for the CO2 electroreduction to formate of indium-based catalysts cannot meet the needs of industrial applications, and the nickel-doped indium oxide nanocrystals (...
Journal ArticleDOI
Selective electrochemical reduction of carbon dioxide to ethylene on a copper hydroxide nitrate nanostructure electrode
TL;DR: Benefiting from the defects and rough surface, this electrode exhibited a high selectivity for C2H4 production with a faradaic efficiency (FE) of 31.80% and a high stability for 20 h.
Journal ArticleDOI
Synthesis of Aliphatic Acids from CO2 and Water at Efficiencies Close to the Photosynthesis Limit Using Mixed Copper and Iron Oxide Films
TL;DR: In this article, uniformly mixed copper and iron oxide (CuO/CuFeO2; CFO) bulky heterojuncti cation was shown to be useful for photocatalytic conversion of CO2 and water into value-added chemicals.
Journal ArticleDOI
Zn-Doped Cu(100) facet with efficient catalytic ability for the CO2 electroreduction to ethylene.
TL;DR: This work reveals that the doping of Cu with transition metals has great potential in promoting the electrochemical CO2-to-C2H4 conversion and provides deep insights into the formation mechanisms of C 2H4, thus guiding the design of Cu-based bimetallic catalysts for its effective production.
Journal ArticleDOI
Technical perspective of carbon capture, utilization, and storage
TL;DR: In this article , the authors present the capacity and absorption rate of various chemical solvents and the Faradaic conversion efficiencies for various CO 2 reduction products are used to describe efficiency improvements.
References
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