Journal ArticleDOI
Electrocatalytic reduction of CO2 to ethylene and ethanol through hydrogen-assisted C–C coupling over fluorine-modified copper
Wenchao Ma,Shunji Xie,Tongtong Liu,Qiyuan Fan,Jin-Yu Ye,Fanfei Sun,Zheng Jiang,Qinghong Zhang,Jun Cheng,Ye Wang +9 more
- Vol. 3, Iss: 6, pp 478-487
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TLDR
In this article, a fluorine-modified copper catalyst was proposed for electrocatalytic CO2 electroreduction in a flow cell, achieving an ultrahigh current density of 1.6Abstract:
Electrocatalytic reduction of CO2 into multicarbon (C2+) products is a highly attractive route for CO2 utilization; however, the yield of C2+ products remains low because of the limited C2+ selectivity at high CO2 conversion rates. Here we report a fluorine-modified copper catalyst that exhibits an ultrahigh current density of 1.6 A cm−2 with a C2+ (mainly ethylene and ethanol) Faradaic efficiency of 80% for electrocatalytic CO2 reduction in a flow cell. The C2–4 selectivity reaches 85.8% at a single-pass yield of 16.5%. We show a hydrogen-assisted C–C coupling mechanism between adsorbed CHO intermediates for C2+ formation. Fluorine enhances water activation, CO adsorption and hydrogenation of adsorbed CO to CHO intermediate that can readily undergo coupling. Our findings offer an opportunity to design highly active and selective CO2 electroreduction catalysts with potential for practical application. Electrocatalytic reduction of CO2 into multicarbon (C2+) products is a highly attractive route for CO2 utilization. Now, a fluorine-modified copper catalyst is shown to achieve current densities of 1.6 A cm−2 with a C2+ Faradaic efficiency of 80% for electrocatalytic CO2 reduction in a flow cell.read more
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Journal ArticleDOI
Electrocatalysis for CO2 conversion: from fundamentals to value-added products
Genxiang Wang,Junxiang Chen,Yichun Ding,Pingwei Cai,Luocai Yi,Yan Li,Yan Li,Chaoyang Tu,Yang Hou,Zhenhai Wen,Liming Dai +10 more
TL;DR: In this article, the authors present a rather comprehensive review of the recent research progress, in the view of associated value-added products upon selective electrocatalytic CO2 conversion.
Journal ArticleDOI
CO2 electrolysis to multicarbon products in strong acid
Jianan Erick Huang,Fengwang Li,Fengwang Li,Adnan Ozden,Armin Sedighian Rasouli,F. Pelayo García de Arquer,Shijie Liu,Shuzhen Zhang,Mingchuan Luo,Xue Wang,Yanwei Lum,Yi Xu,Koen Bertens,Rui Kai Miao,Cao-Thang Dinh,David Sinton,Edward H. Sargent +16 more
TL;DR: In this article, a single-pass CO2 utilization of 77% was achieved with a conversion efficiency of 50% toward multicarbon products (ethylene, ethanol, and 1-propanol) at a current density of 1.2 amperes per square centimeter and a full cell voltage of 4.2 volts.
Journal ArticleDOI
Photoinduction of Cu Single Atoms Decorated on UiO-66-NH2 for Enhanced Photocatalytic Reduction of CO2 to Liquid Fuels.
TL;DR: Theoretical calculations revealed that the introduction of the Cu SAs on the UiO-66-NH2 greatly facilitates the conversion of CO2 to CHO* and CO* intermediates, leading to excellent selectivity toward methanol and ethanol.
Posted Content
Rational Catalyst and Electrolyte Design for Co2 Electroreduction Towards Multicarbon Products
TL;DR: In this article, the authors discuss strategies to achieve high C2+ selectivity through rational design of the catalyst and electrolyte, focusing on findings extracted from in situ and operando characterizations.
Journal ArticleDOI
The future of low-temperature carbon dioxide electrolysis depends on solving one basic problem
TL;DR: Realigning research priorities to address the carbonate problem is essential if this technology is to become a viable option for renewable chemical and fuel production.
References
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