Catalysis under shell: Improved CO oxidation reaction confined in Pt@h-BN core-shell nanoreactors

doi:10.1007/s12274-017-1512-8

	Catalysis under shell: Improved CO oxidation reaction confined in Pt@h-BN core-shell nanoreactors
	Li, Yangyang 1; Bao, Xinhe 2; Sun, Mengmeng 2; Fu, Qiang 2; Gao, Lijun 2,3; Zheng, Yanping 1; Chen, Mingshu 1
刊名	NANO RESEARCH
	2017-04-01
卷号	10 期号:4 页码:1403-1412
关键词	Core-shell Co Oxidation Pt Hexagonal Boron Nitride Nanoreactor
ISSN号	1998-0124
DOI	10.1007/s12274-017-1512-8
文献子类	Article
英文摘要	Core-shell nanostructures consisting of active metal cores and protective shells often exhibit enhanced catalytic performance, in which reactants can access a small part of the core surfaces through the pores in the shells. In this study, we show that Pt nanoparticles (NPs) can be embedded into few-layer hexagonal boron nitride (h-BN) overlayers, forming Pt@h-BN core-shell nanocatalysts. The h-BN shells not only protect the Pt NPs under harsh conditions but also allow gaseous molecules such as CO and O-2 to access a large part of the Pt surfaces through a facile intercalation process. As a result, the Pt@h-BN nanostructures act as nanoreactors, and CO oxidation reactions with improved activity, selectivity, and stability occur at the core-shell interfaces. The confinement effect exerted by the h-BN shells promotes the Pt-catalyzed reactions. Our work suggests that two-dimensional shells can function as robust but flexible covers on nanocatalyst surfaces and tune the surface reactivity.
WOS关键词	HEXAGONAL BORON-NITRIDE ; OXYGEN REDUCTION ; SURFACE-CHEMISTRY ; CARBON-MONOXIDE ; GRAPHENE COVER ; DOPED GRAPHENE ; OXIDE SURFACES ; PLATINUM ; METAL ; NANOPARTICLES
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	TSINGHUA UNIV PRESS
WOS记录号	WOS:000398382300027
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/169344]
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	Fu, Qiang
作者单位	1.Xiamen Univ, Dept Chem, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, IChEM, Dalian 116023, Peoples R China 3.Univ Sci & Technol China, Dept Chem Phys, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Li, Yangyang,Bao, Xinhe,Sun, Mengmeng,et al. Catalysis under shell: Improved CO oxidation reaction confined in Pt@h-BN core-shell nanoreactors[J]. NANO RESEARCH,2017,10(4):1403-1412.
APA	Li, Yangyang.,Bao, Xinhe.,Sun, Mengmeng.,Fu, Qiang.,Gao, Lijun.,...&Chen, Mingshu.(2017).Catalysis under shell: Improved CO oxidation reaction confined in Pt@h-BN core-shell nanoreactors.NANO RESEARCH,10(4),1403-1412.
MLA	Li, Yangyang,et al."Catalysis under shell: Improved CO oxidation reaction confined in Pt@h-BN core-shell nanoreactors".NANO RESEARCH 10.4(2017):1403-1412.