CAS OpenIR  > 中科院上海应用物理研究所2011-2020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
2020
Source PublicationNATURE CATALYSIS
ISSN2520-1158
Volume3Issue:6Pages:478-487
Subtype期刊论文
AbstractElectrocatalytic 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.
KeywordGENERALIZED GRADIENT APPROXIMATION CARBON-DIOXIDE ELECTROCHEMICAL REDUCTION CATALYTIC-HYDROGENATION ENERGY CALCULATIONS ELECTROLYTE DESIGN OXIDATION-STATE ELECTROREDUCTION VALORIZATION SELECTIVITY
DOI10.1038/s41929-020-0450-0
Indexed BySCI ; EI
Language英语
Citation statistics
Cited Times:147[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32838
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.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
Recommended Citation
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.
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