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Highly Efficient Electrocatalytic CO2 Reduction to C2+ Products on a Poly(ionic liquid)-Based Cu-0-Cu-I Tandem Catalyst
Duan, Guo-Yi1; Li, Xiao-Qiang1,2; Ding, Guang-Rong1,2; Han, Li-Jun1; Xu, Bao-Hua1,2; Zhang, Suo-Jiang1,2
2022-01-11
Source PublicationANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN1433-7851
Pages11
AbstractElectroreduction of CO2 on a polymer-modified Cu-based catalyst has shown high multi-electron reduction (>2 e(-)) selectivity, however, most of the corresponding current densities are still too small to support industrial applications. In this work, we designed a poly(ionic liquid) (PIL)-based Cu-0-Cu-I tandem catalyst for the production of C2+ products with both high reaction rate and high selectivity. Remarkably, a high C2+ faradaic efficiency (FEC2+ ) of 76.1 % with a high partial current density of 304.2 mA cm(-2) is obtained. Mechanistic studies reveal the numbers and highly dispersed Cu-0-PIL-Cu-I interfaces are vital for such reactivity. Specifically, Cu nanoparticles derived Cu-0-PIL interfaces account for high current density and a moderate C2+ selectivity, whereas Cu-I species derived PIL-Cu-I interfaces exhibit high activity for C-C coupling with the local enriched *CO intermediate. Furthermore, the presence of the PIL layer promotes the C2+ selectivity by lowering the barrier of C-C coupling.
KeywordCO2 conversion Electrochemistry Ionic liquids Polymer modification Tandem catalyst
DOI10.1002/anie.202110657
Language英语
WOS KeywordELECTROCHEMICAL REDUCTION ; CARBON-MONOXIDE ; COPPER ; ELECTROREDUCTION ; PHOTOELECTRON ; ELECTRON ; ETHYLENE ; SPECTRA ; METHANE ; XPS
Funding ProjectKey Research Program of Frontier Sciences, CAS[ZDBS-LY-JSC022] ; Excellent Young Scientists Fund[22022815] ; National Natural Science Foundation of China[U1704251] ; National Natural Science Foundation of China[21776291] ; Zhengzhou High Level Talent Certificate[20180200052]
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
Funding OrganizationKey Research Program of Frontier Sciences, CAS ; Excellent Young Scientists Fund ; National Natural Science Foundation of China ; Zhengzhou High Level Talent Certificate
WOS IDWOS:000741467300001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51731
Collection中国科学院过程工程研究所
Corresponding AuthorXu, Bao-Hua; Zhang, Suo-Jiang
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, CAS Key Lab Green Proc & Engn,Beijing Key Lab Ion, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Duan, Guo-Yi,Li, Xiao-Qiang,Ding, Guang-Rong,et al. Highly Efficient Electrocatalytic CO2 Reduction to C2+ Products on a Poly(ionic liquid)-Based Cu-0-Cu-I Tandem Catalyst[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2022:11.
APA Duan, Guo-Yi,Li, Xiao-Qiang,Ding, Guang-Rong,Han, Li-Jun,Xu, Bao-Hua,&Zhang, Suo-Jiang.(2022).Highly Efficient Electrocatalytic CO2 Reduction to C2+ Products on a Poly(ionic liquid)-Based Cu-0-Cu-I Tandem Catalyst.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,11.
MLA Duan, Guo-Yi,et al."Highly Efficient Electrocatalytic CO2 Reduction to C2+ Products on a Poly(ionic liquid)-Based Cu-0-Cu-I Tandem Catalyst".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2022):11.
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