Towards the atomic-scale characterization of isolated iron sites confined in a nitrogen-doped graphene matrix

doi:10.1016/j.apsusc.2017.03.090

	Towards the atomic-scale characterization of isolated iron sites confined in a nitrogen-doped graphene matrix
	Liu, Qingfei 1,2; Liu, Yun 1,2; Li, Haobo 1,2; Li, Lulu 3; Deng, Dehui 1; Yang, Fan 1; Bao, Xinhe 1
刊名	APPLIED SURFACE SCIENCE
	2017-07-15
卷号	410 页码:111-116
关键词	Ball-milling Afm Stm Nitrogen-doped Graphene Isolated Iron Sites
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2017.03.090
文献子类	Article
英文摘要	Atomic 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.
WOS关键词	CATALYSTS ; MECHANOCHEMISTRY ; NITROARENES ; MICROSCOPY ; REDUCTION ; OXYGEN
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000401201500014
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/168312]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Yang, Fan; Bao, Xinhe
作者单位	1.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
推荐引用方式 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.