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O-, N-Atoms-Coordinated Mn Cofactors within a Graphene Framework as Bioinspired Oxygen Reduction Reaction Electrocatalysts

文献类型：期刊论文

作者Yang, Yang1,3; Mao, Kaitian1,3; Gao, Shiqi1,3; Huang, Hao1,3; Xia, Guoliang1,3; Lin, Zhiyu1,3; Jiang, Peng1,3; Wang, Changlai1,3; Wang, Hui2; Chen, Qianwang1,2,3
刊名ADVANCED MATERIALS
出版日期2018-07-12
卷号30期号:28页码:10
关键词bioinspiration electrocatalysis metal-organic frameworks single atoms
ISSN号0935-9648
DOI10.1002/adma.201801732
通讯作者Wang, Hui(hw39@hmfl.ac.cn) ; Chen, Qianwang(cqw@ustc.edu.cn)
英文摘要Manganese (Mn) is generally regarded as not being sufficiently active for the oxygen reduction reaction (ORR) compared to other transition metals such as Fe and Co. However, in biology, manganese-containing enzymes can catalyze oxygen-evolving reactions efficiently with a relative low onset potential. Here, atomically dispersed O and N atoms coordinated Mn active sites are incorporated within graphene frameworks to emulate both the structure and function of Mn cofactors in heme-copper oxidases superfamily. Unlike previous single-metal catalysts with general M-N-C structures, here, it is proved that a coordinated O atom can also play a significant role in tuning the intrinsic catalytic activities of transition metals. The biomimetic electrocatalyst exhibits superior performance for the ORR and zinc-air batteries under alkaline conditions, which is even better than that of commercial Pt/C. The excellent performance can be ascribed to the abundant atomically dispersed Mn cofactors in the graphene frameworks, confirmed by various characterization methods. Theoretical calculations reveal that the intrinsic catalytic activity of metal Mn can be significantly improved via changing local geometry of nearest coordinated O and N atoms. Especially, graphene frameworks containing the Mn-N3O1 cofactor demonstrate the fastest ORR kinetics due to the tuning of the d electronic states to a reasonable state.
WOS关键词NITROGEN-DOPED GRAPHENE ; LITHIUM-ION BATTERIES ; METAL-ORGANIC FRAMEWORK ; HIGH-PERFORMANCE ANODES ; TRANSITION-METALS ; MANGANESE OXIDES ; FUEL-CELLS ; CARBON ; CATALYSTS ; COBALT
资助项目National Natural Science Foundation (NSFC)[51772283] ; National Natural Science Foundation (NSFC)[21271163] ; National Natural Science Foundation (NSFC)[U1232211] ; Fundamental Research Funds for the Central Universities[WK2060140021] ; CAS/SAFEA International Partnership Program for Creative Research Teams ; Hefei Science Center CAS[2016HSC-IU011] ; Most Grant[2016YFA0401800]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000439994500032
出版者WILEY-V C H VERLAG GMBH
资助机构National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; National Natural Science Foundation (NSFC) ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/37760]  
专题合肥物质科学研究院_中科院强磁场科学中心
通讯作者Wang, Hui; Chen, Qianwang
作者单位1.Univ Sci & Technol China, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Hefei 230026, Anhui, Peoples R China
2.Chinese Acad Sci, Anhui Key Lab Condensed Mater Phys Extreme Condit, Hefei Inst Phys Sci, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China
3.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Yang,Mao, Kaitian,Gao, Shiqi,et al. O-, N-Atoms-Coordinated Mn Cofactors within a Graphene Framework as Bioinspired Oxygen Reduction Reaction Electrocatalysts[J]. ADVANCED MATERIALS,2018,30(28):10.
APA Yang, Yang.,Mao, Kaitian.,Gao, Shiqi.,Huang, Hao.,Xia, Guoliang.,...&Chen, Qianwang.(2018).O-, N-Atoms-Coordinated Mn Cofactors within a Graphene Framework as Bioinspired Oxygen Reduction Reaction Electrocatalysts.ADVANCED MATERIALS,30(28),10.
MLA Yang, Yang,et al."O-, N-Atoms-Coordinated Mn Cofactors within a Graphene Framework as Bioinspired Oxygen Reduction Reaction Electrocatalysts".ADVANCED MATERIALS 30.28(2018):10.

入库方式： OAI收割

来源：合肥物质科学研究院

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