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Turning Carbon Atoms into Highly Active Oxygen Reduction Reaction Electrocatalytic Sites in Nitrogen-Doped Graphene-Coated Co@Ag
Li, Mengsi1,2; Wang, Changlai1,2; Yang, Yang1,2; Jiang, Peng1,2; Lin, Zhiyu1,2; Xia, Guoliang1,2; Yang, Kang1,2; Xu, Pengping1,2; Chen, Qianwang1,2,3
2018-11-05
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume6Issue:11Pages:14033-14041
Corresponding AuthorChen, Qianwang(cqw@ustc.edu.cn)
AbstractIn recent years, 3d transition metals or alloys encapsulated by graphene layers (M@NG) have been emerging as prospective electrocatalysts especially for hydrogen evolution reactions (HERs) and oxygen evolution reactions (OERs). However, this strategy is limited in preparation of high-performance oxygen reduction reaction (ORR) catalysts. Herein we prepared Co@Ag bimetallic nanoparticles embedded in nitrogen rich graphene layers via pyrolysis metal organic frameworks (MOFs). The catalyst displays extraordinarily high ORR performance with a high onset potential of 0.989 V and a half-wave potential of 0.872 V in 0.1 M KOH. Moreover, it shows a superb long-term stability performance after 5000 cycles on account of the carbon layers that protect the material from corrosion as well as high methyl alcohol tolerance under methanol environments. Density functional theory calculations suggest that carbon atoms, which are adjacent to nitrogen dopants in Co@Ag@NC, are active sites for ORR Especially, Ag "mantle" in Co@Ag@NC contributes a great deal to tuning of electronic structure of carbon active sites, thereby promoting the activity of carbon atoms and enhancing ORR kinetics. This unique Co core/Ag mantle structure can boost the overall ORR activity of M@NG while keeping cost-effectiveness due to the very low requirement of Ag content, providing a new insight into design of other efficient electrocatalysts.
KeywordMetal-organic frameworks Oxygen reduction reaction Electron transfer Co core/Ag mantle structure Tuning electronic structure
Funding OrganizationNational Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS
DOI10.1021/acssuschemeng.8b02573
WOS KeywordHYDROGEN EVOLUTION REACTION ; REACTION CATALYST ; ALLOY CATALYSTS ; NANOPARTICLES ; STRAIN ; COBALT ; PD ; NANOCRYSTALS ; SPECTROSCOPY ; ENERGY
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation (NSFC)[21271163] ; National Natural Science Foundation (NSFC)[U1232211] ; National Natural Science Foundation (NSFC)[21571168] ; Fundamental Research Funds for the Central Universities[WK2060140021] ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hefei Science Center CAS[2016HSC-IU011]
Funding OrganizationNational Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS ; Hefei Science Center CAS
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Engineering
WOS SubjectChemistry, Multidisciplinary ; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY ; Engineering, Chemical
WOS IDWOS:000449577200048
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/34242
Collection中科院强磁场科学中心
Corresponding AuthorChen, Qianwang
Affiliation1.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Dept Mat Sci & Engn, 96 JinZhai Rd, Hefei 230026, Anhui, Peoples R China
2.Univ Sci & Technol China, Collaborat Innovat Ctr Suzhou Nanosci & Technol, 96 JinZhai Rd, Hefei 230026, Anhui, Peoples R China
3.Chinese Acad Sci, Hefei Inst Phys Sci, High Magnet Field Lab, Hefei 230031, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Li, Mengsi,Wang, Changlai,Yang, Yang,et al. Turning Carbon Atoms into Highly Active Oxygen Reduction Reaction Electrocatalytic Sites in Nitrogen-Doped Graphene-Coated Co@Ag[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2018,6(11):14033-14041.
APA Li, Mengsi.,Wang, Changlai.,Yang, Yang.,Jiang, Peng.,Lin, Zhiyu.,...&Chen, Qianwang.(2018).Turning Carbon Atoms into Highly Active Oxygen Reduction Reaction Electrocatalytic Sites in Nitrogen-Doped Graphene-Coated Co@Ag.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,6(11),14033-14041.
MLA Li, Mengsi,et al."Turning Carbon Atoms into Highly Active Oxygen Reduction Reaction Electrocatalytic Sites in Nitrogen-Doped Graphene-Coated Co@Ag".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 6.11(2018):14033-14041.
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