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Facet Sensitivity of Capping Ligand-Free Ag Crystals in CO2 Electrochemical Reduction to CO
Yang, Min1; Zhang, Jiazhou2; Cao, Yongyong3; Wu, Minfang2; Qian, Kun1; Zhang, Zhenhua1; Liu, Hongyang4; Wang, Jianguo3; Chen, Wei2; Huang, Weixin1
Corresponding AuthorWang, Jianguo(jgw@zjut.edu.cn) ; Chen, Wei(chenw@sari.ac.cn) ; Huang, Weixin(huangwx@ustc.edu.cn)
2018-11-22
Source PublicationCHEMCATCHEM
ISSN1867-3880
Volume10Issue:22Pages:5128-5134
AbstractSilver-based electrocatalysts are active in catalyzing electrochemical reduction of CO2 to CO. We herein report synthesis of capping ligand-free Ag cubes and octahedra by morphology-preserved CO reduction from corresponding Ag2O counterparts and their performance in electrochemical reduction of CO2. Ag cubes are much more active than Ag octahedra and exhibit a stable CO formation rate as high as 142.4 mmol(CO) g(cat)(-1) h(-1) at -0.95 V (vs. RHE). Ag films transiently formed on Ag2O crystals during CO2 electroreduction were observed more active than Ag crystals, revealing a promoting effect of Ag2O substrate on electrocatalytic activity of Ag film. These results clearly identify a facet sensitivity of silver electrocatalysts and highlight the importance of surface cleanness of Ag colloids as efficient electrocatalysts.
KeywordLigand-free Ag crystals facet sensitivity CO2 electrochemical reduction Ag film DFT
Funding OrganizationNational Key R&D Program of MOST ; National Natural Science Foundation of China ; MOE Changjiang Scholars Program ; MOE Fundamental Research Funds for the Central Universities ; Collaborative Innovation Center of Suzhou Nano Science and Technology
DOI10.1002/cctc.201801423
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of MOST[2017YFB0602205] ; National Natural Science Foundation of China[21525313] ; MOE Changjiang Scholars Program ; MOE Fundamental Research Funds for the Central Universities[WK2060030017] ; Collaborative Innovation Center of Suzhou Nano Science and Technology
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000451444000006
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/130579
Collection中国科学院金属研究所
Corresponding AuthorWang, Jianguo; Chen, Wei; Huang, Weixin
Affiliation1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, CAS Key Lab Mat Energy Convers, Dept Chem Phys, Hefei 230026, Anhui, Peoples R China
2.Chinese Acad Sci, Shanghai Adv Res Inst, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai 201210, Peoples R China
3.Zhejiang Univ Technol, Coll Chem Engn, Ind Catalysis Inst, Hangzhou 310032, Zhejiang, Peoples R China
4.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Yang, Min,Zhang, Jiazhou,Cao, Yongyong,et al. Facet Sensitivity of Capping Ligand-Free Ag Crystals in CO2 Electrochemical Reduction to CO[J]. CHEMCATCHEM,2018,10(22):5128-5134.
APA Yang, Min.,Zhang, Jiazhou.,Cao, Yongyong.,Wu, Minfang.,Qian, Kun.,...&Huang, Weixin.(2018).Facet Sensitivity of Capping Ligand-Free Ag Crystals in CO2 Electrochemical Reduction to CO.CHEMCATCHEM,10(22),5128-5134.
MLA Yang, Min,et al."Facet Sensitivity of Capping Ligand-Free Ag Crystals in CO2 Electrochemical Reduction to CO".CHEMCATCHEM 10.22(2018):5128-5134.
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