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
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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
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Engineering Water Molecules Activation Center on Multisite Electrocatalysts for Enhanced CO2 Methanation.
Shenghua Chen,Zedong Zhang,Wenjun Jiang,Shishi Zhang,Jiexin Zhu,Liqiang Wang,Honghui Ou,Shahid Uz Zaman,L. Tan,Peng Zhu,Erhuan Zhang,Peng Jiang,Yaqiong Su,Dingsheng Wang,Yadong Li +14 more
TL;DR: In this paper , a novel tandem catalyst comprising Ir single-atom (Ir1)-doped hybrid Cu3N/Cu2O multisite that operates efficiently in converting CO2 to CH4 is presented.
Journal ArticleDOI
Metal–Organic-Frameworks-DerivedCu/Cu 2 O Catalyst with Ultrahigh Current Density for Continuous-FlowCO 2 Electroreduction
TL;DR: The electrochemical reduction of carbon dioxide (ECR-CO2) to produce low-carbon fuels and high-value industrial chemicals has been proven to be a viable solution to energy sustainability as mentioned in this paper.
Journal ArticleDOI
Electrochemical CO2 reduction to formate on indium catalysts prepared by electrodeposition in deep eutectic solvents
Barbara Bohlen,Daniela Wastl,Johanna Radomski,Johanna Radomski,Volker Sieber,Volker Sieber,Luciana Vieira +6 more
TL;DR: In this paper, the authors reported the preparation and characterization of indium catalysts for the electrochemical CO2 reduction to formate, which is an elegant alternative for combining CO2 utilization with renewable energy conversion and storage.
Journal ArticleDOI
Research progress of electrochemical CO2 reduction for copper-based catalysts to multicarbon products
TL;DR: In this article, the authors summarize the design strategies of copper-based catalysts to improve the performance of electrochemical CO2 reduction reaction (ECO2RR), including structure, defect, compounds-derived catalysts, bimetallic construction, and heterogeneous engineering.
Journal ArticleDOI
Laser-Microstructured Copper Reveals Selectivity Patterns in the Electrocatalytic Reduction of CO2
TL;DR: In this paper, the authors quantify the impact of the (electro)chemical environment on the selectivity pattern by using microstructured copper (Cu) electrodes prepared by ultra-short pulse laser ablation.
References
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