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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Convergent production of 2,5-furandicarboxylic acid from biomass and CO2
TL;DR: In this paper, a rationally designed process for complete lignocellulose conversion and CO2 utilization to convergently produce 2,5-furandicarboxylic acid (FDCA) that can be used in bioplastics and resins.
Journal ArticleDOI
Solar-Driven Electrochemical CO2 Reduction with Heterogeneous Catalysts
Journal ArticleDOI
Tandem Electrodes for Carbon Dioxide Reduction into C2+ Products at Simultaneously High Production Efficiency and Rate
TL;DR: In this paper, the authors proposed a tandem gas diffusion electrodes yielding C2+ products at simultaneously high FE and production rate via sequential CO2 reduction on two independent, selective, and adjacent catalyst layers.
Journal ArticleDOI
Gold-in-copper at low *CO coverage enables efficient electromethanation of CO2.
Xue Wang,Pengfei Ou,Joshua Wicks,Yi Xie,Ying Wang,Jun Li,Jason Tam,Dan Ren,Jane Y. Howe,Ziyun Wang,Adnan Ozden,Y. Zou Finfrock,Y. Zou Finfrock,Yi Xu,Yu Hang Li,Armin Sedighian Rasouli,Koen Bertens,Alexander H. Ip,Michael Graetzel,David Sinton,Edward H. Sargent +20 more
TL;DR: In this article, a suite of Au-Cu catalysts were used to control *CO availability by regulating CO2 concentration and reaction rate, which led to a 1.6× improvement in the methane:H2 selectivity ratio.
Journal ArticleDOI
Dynamic Dissolution and Re-adsorption of Molybdate Ion in Iron Incorporated Nickel-molybdenum Oxyhydroxide for Promoting Oxygen Evolution Reaction
Hanxiao Liao,Xiaodong Zhang,Shu Juan Niu,Pengfei Tan,Kejun Chen,Yong Liu,Gongming Wang,Min Liu,Jun Pan +8 more
TL;DR: In this paper , the effect of escaped inactive ion from pre-catalysts themselves is usually ignored during reconstruction processes, which delivers a promoting effect on OER performance, and an efficient electrocatalyst of Fe incorporated NiMo oxyhydroxide is prepared through an electrochemical strategy for OER.
References
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