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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The targeted multi-electrons transfer for acetic acid and ethanol obtained with (n-Bu4N)3SVW11O40 and in synergetic catalysis in CO2 electroreduction
TL;DR: In this paper, indium and prepared (n-Bu4N)3 SVW11O40 (SVW11) work as synergetic catalysis firstly for ECO2RR to acetic acid and ethanol with 67.4% and 19.4%, respectively.
Journal ArticleDOI
Ultra-rapid synthesis of the MgCu2 and Mg2Cu Laves phases and their facile conversion to nanostructured copper with controllable porosity; an energy-efficient, reversible process
Zhen Fan,Gytis Baranovas,Gytis Baranovas,Holly A. Yu,Robert Szczesny,Wei-Ren Liu,Duncan H. Gregory +6 more
TL;DR: In this paper, the microwave-induced metal plasma (MIMP) approach was used to synthesize phase pure MgCu2 and high-purity Mg2Cu within 1 min from elemental powders.
Journal ArticleDOI
Computer-aided identification and evaluation of technologies for sustainable carbon capture and utilization using a superstructure approach
TL;DR: ArKaTAC3 as mentioned in this paper is a computer-aided tool for evaluating carbon capture and utilization (CCU) technologies in terms of their economics and CO2 reduction potential, both quickly and fairly.
Journal ArticleDOI
Recent progress in electrochemical C–N coupling reactions
TL;DR: In this article , the emerging trends in electrocatalytic C-N coupling reactions using CO2 and inorganic nitrogenous species (i.e., dinitrogen (N2), nitrate (NO2−), nitrite (NO3−), and ammonia (NH3)) as raw materials are discussed.
Journal ArticleDOI
Optimizing Temperature Treatment of Copper Hollow Fibers for the Electrochemical Reduction of CO2 to CO
TL;DR: In this paper, the copper hollow fibers were prepared via dry-wet spinning of a polymer solution of N-methylpyrrolidone, Polyetherimide, Polyvinyl Pyrolide, and copper particles of sizes in the range of 1-2 µm.
References
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