Electrocatalytic reduction of CO2 to ethylene and ethanol through hydrogen-assisted C-C coupling over fluorine-modified copper

doi:10.1038/s41929-020-0450-0

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Electrocatalytic reduction of CO2 to ethylene and ethanol through hydrogen-assisted C-C coupling over fluorine-modified copper
	Ma, WC ; Xie, SJ ; Liu, TT ; Fan, QY ; Ye, JY ; Sun, FF ; Jiang, Z ; Zhang, QH ; Cheng, J ; Wang, Y
刊名	NATURE CATALYSIS
	2020
卷号	3 期号:6 页码:478-487
关键词	GENERALIZED GRADIENT APPROXIMATION CARBON-DIOXIDE ELECTROCHEMICAL REDUCTION CATALYTIC-HYDROGENATION ENERGY CALCULATIONS ELECTROLYTE DESIGN OXIDATION-STATE ELECTROREDUCTION VALORIZATION SELECTIVITY
ISSN号	2520-1158
DOI	10.1038/s41929-020-0450-0
文献子类	期刊论文
英文摘要	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.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32838]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Xiamen Univ, State Key Lab Phys Chem Solid Surfaces, Collaborat Innovat Ctr Chem Energy Mat, Coll Chem & Chem Engn,Natl Engn Lab Green Chem Pr, Xiamen, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai, Peoples R China
推荐引用方式 GB/T 7714	Ma, WC,Xie, SJ,Liu, TT,et al. Electrocatalytic reduction of CO2 to ethylene and ethanol through hydrogen-assisted C-C coupling over fluorine-modified copper[J]. NATURE CATALYSIS,2020,3(6):478-487.
APA	Ma, WC.,Xie, SJ.,Liu, TT.,Fan, QY.,Ye, JY.,...&Wang, Y.(2020).Electrocatalytic reduction of CO2 to ethylene and ethanol through hydrogen-assisted C-C coupling over fluorine-modified copper.NATURE CATALYSIS,3(6),478-487.
MLA	Ma, WC,et al."Electrocatalytic reduction of CO2 to ethylene and ethanol through hydrogen-assisted C-C coupling over fluorine-modified copper".NATURE CATALYSIS 3.6(2020):478-487.