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Metal-organic frameworks derived cobalt encapsulated in porous nitrogen-doped carbon nanostructure towards highly efficient and durable oxygen reduction reaction electrocatalysis
Xue, Yudong1,3; Wang, Yunting2; Pan, Zhenhua1; Zhang, Chunhui2
2020-03-01
Source PublicationJOURNAL OF POWER SOURCES
ISSN0378-7753
Volume451Pages:9
AbstractIn this study, metal-organic frameworks (MOFs) derived cobalt encapsulated in porous nitrogen-doped carbon (Co/N-C) nanocomposite electrocatalyst is developed towards the highly efficient and durable oxygen reduction reaction (ORR) via pyrolysis of core -shell MOFs precursor. Electrochemical characterization results indicate that the as-prepared Co/N-C nanocomposite shows superior ORR selectivity through a four-electron pathway and extraordinary long-term stability. The uniform nitrogen dopants on the surface of the polyhedron are determined and deconvoluted by the X-ray photoelectron spectroscopy (XPS). We contribute this superior catalytic activity to the characteristic attributes of Co/N-C nanocomposite, which could be stemmed from its exquisite catalyst design: (i) the existence of Co/N-doped carbon nanotubes nanostructure on the catalyst surface and (ii) the proper nitrogen content on the N-doped carbon (N-C) layer. Moreover, Co/N-C nanocomposite presents favorable long-term catalytic stability for 60 h, owning to the protective effect of the porous N-C layer. The present work demonstrates that the MOFs-derived nanomaterial can be transformed into high-value functional transition metaVN-doped carbon nanocomposite electrocatalysts. From both the stability and activity prospects, our work opens a new avenue to strategically design highly active and stable-oriented electrocatalysts.
KeywordOxygen reduction reaction Electrocatalysis Cobalt Nitrogen-doped carbon Fuel cell Metal-organic frameworks
DOI10.1016/j.jpowsour.2020.227747
Language英语
WOS KeywordHYDROGEN-PEROXIDE ; MESOPOROUS CARBON ; GRAPHENE ; CATALYST ; CO ; NANOSHEETS ; ORR ; NANOCOMPOSITES ; NANOTUBES ; ARRAYS
Funding ProjectUniversity of Chinese Academy of Sciences[UCAS [2015]37] ; Research Fund of Major Science and Technology Program for Water Pollution Control and Treatment[2017ZX07402001]
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels ; Materials Science
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary
Funding OrganizationUniversity of Chinese Academy of Sciences ; Research Fund of Major Science and Technology Program for Water Pollution Control and Treatment
WOS IDWOS:000518874300042
PublisherELSEVIER
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/39825
Collection中国科学院过程工程研究所
Corresponding AuthorXue, Yudong; Wang, Yunting
Affiliation1.Yale Univ, Dept Chem & Environm Engn, New Haven, CT 06511 USA
2.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Xue, Yudong,Wang, Yunting,Pan, Zhenhua,et al. Metal-organic frameworks derived cobalt encapsulated in porous nitrogen-doped carbon nanostructure towards highly efficient and durable oxygen reduction reaction electrocatalysis[J]. JOURNAL OF POWER SOURCES,2020,451:9.
APA Xue, Yudong,Wang, Yunting,Pan, Zhenhua,&Zhang, Chunhui.(2020).Metal-organic frameworks derived cobalt encapsulated in porous nitrogen-doped carbon nanostructure towards highly efficient and durable oxygen reduction reaction electrocatalysis.JOURNAL OF POWER SOURCES,451,9.
MLA Xue, Yudong,et al."Metal-organic frameworks derived cobalt encapsulated in porous nitrogen-doped carbon nanostructure towards highly efficient and durable oxygen reduction reaction electrocatalysis".JOURNAL OF POWER SOURCES 451(2020):9.
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