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Towards the atomic-scale characterization of isolated iron sites confined in a nitrogen-doped graphene matrix
Liu, Qingfei1,2; Liu, Yun1,2; Li, Haobo1,2; Li, Lulu3; Deng, Dehui1; Yang, Fan1; Bao, Xinhe1
KeywordBall-milling Afm Stm Nitrogen-doped Graphene Isolated Iron Sites
Source PublicationAPPLIED SURFACE SCIENCE
2017-07-15
ISSN0169-4332
DOI10.1016/j.apsusc.2017.03.090
Volume410Pages:111-116
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS Research AreaChemistry ; Materials Science ; Physics
WOS KeywordCATALYSTS ; MECHANOCHEMISTRY ; NITROARENES ; MICROSCOPY ; REDUCTION ; OXYGEN
AbstractAtomic scale characterization of the surface structure of powder catalysts is essential to the identification of active sites, but remains a major challenge in catalysis research. We described here a procedure that combines atomic force microscopy (AFM), operated in air, and scanning tunneling microscopy (STM), operated in UHV, to obtain the atomic structure and local electronic properties of powder catalysts. The atomically dispersed Fe-N-C catalyst was used as an example, which was synthesized by low temperature ball milling methods. We discussed the effect of solvents in the dispersion of powder catalysts on a planar support, which is key to the subsequent atomic characterization. From the morphology, atomic structure and local electronic properties of the Fe-N-C catalyst, our combined measurements also provide an insight for the effect of ball milling in the preparation of atomically dispersed metal catalysts. (C) 2017 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000401201500014
PublisherELSEVIER SCIENCE BV
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Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/168313
Collection中国科学院大连化学物理研究所
Corresponding AuthorYang, Fan; Bao, Xinhe
Affiliation1.Chinese Acad Sci, CAS Ctr Excellence Nanosci, Dalian Natl Lab Clean Energy, State Key Lab Catalysis,Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Dalian Univ Technol, Fac Chem Environm & Biol Sci & Technol, Coll Chem, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Liu, Qingfei,Liu, Yun,Li, Haobo,et al. Towards the atomic-scale characterization of isolated iron sites confined in a nitrogen-doped graphene matrix[J]. APPLIED SURFACE SCIENCE,2017,410:111-116.
APA Liu, Qingfei.,Liu, Yun.,Li, Haobo.,Li, Lulu.,Deng, Dehui.,...&Bao, Xinhe.(2017).Towards the atomic-scale characterization of isolated iron sites confined in a nitrogen-doped graphene matrix.APPLIED SURFACE SCIENCE,410,111-116.
MLA Liu, Qingfei,et al."Towards the atomic-scale characterization of isolated iron sites confined in a nitrogen-doped graphene matrix".APPLIED SURFACE SCIENCE 410(2017):111-116.
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