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
Bi2O3 Nanosheets Grown on Carbon Nanofiber with Inherent Hydrophobicity for High-Performance CO2 Electroreduction in a Wide Potential Window.
Shao-Qing Liu,Ehsan Shahini,Min-Rui Gao,Lu Gong,Peng-Fei Sui,Tian Tang,Hongbo Zeng,Jing-Li Luo +7 more
TL;DR: In this paper, the Bi2O3 nanosheets (NSs) with inherent hydrophobicity achieved a peak formate current density of 102.1 mA cm-2 and high formate Faradaic efficiency of >93% over a very wide potential window of 1000 mV.
Journal ArticleDOI
Hierarchical micro/nanostructured silver hollow fiber boosts electroreduction of carbon dioxide
Shoujie Li,Wei Chen,Xiao Li Dong,Chang Zhu,A Chen,Yan Hua Song,Guihua Li,Wei-Lin Wei,Yuhan Sun +8 more
TL;DR: In this paper , a hierarchical micro/nanostructured silver hollow fiber electrode that reduces CO2 to CO with a faradaic efficiency of 93% and a current density of 1.26 A · cm-2 at a potential of -0.83 V vs. RHE was reported.
Journal ArticleDOI
Mass transfer effect to electrochemical reduction of CO2: Electrode, electrocatalyst and electrolyte
Shun Lu,Yucheng Wang,Hang Xiang,Hanhui Lei,Ben Xu,Lei Xing,Eileen Hao Yu,Terence Xiaoteng Liu +7 more
TL;DR: In this article , the authors comprehensively reviewed development related to mass transfer study of CO2, including the mechanism of mass transfer of CO 2, and main factors (electrodes, electrocatalysts and electrolytes) on two-phase or multi-phase interface during eCO2RR.
Journal ArticleDOI
Catalytic Hybrid Electrocatalytic/Biocatalytic Cascades for Carbon Dioxide Reduction and Valorization
Abstract: Carbon dioxide, as a greenhouse gas, has a critical impact on global climate change. Hence, reducing its emissions and/or transforming it into value-added chemicals is of paramount importance to so...
Journal ArticleDOI
Syngas electrosynthesis using self-supplied CO2 from photoelectrocatalytic pollutant degradation
TL;DR: In this article, a single-chamber based two-electrode system was used to synthesize syngas using self-supplied CO2 from photoelectrocatalytic pollutant oxidation.
References
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Journal ArticleDOI
Generalized Gradient Approximation Made Simple
TL;DR: A simple derivation of a simple GGA is presented, in which all parameters (other than those in LSD) are fundamental constants, and only general features of the detailed construction underlying the Perdew-Wang 1991 (PW91) GGA are invoked.
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Journal ArticleDOI
Improved tangent estimate in the nudged elastic band method for finding minimum energy paths and saddle points
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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