Structure control of Pt-Sn bimetallic catalysts supported on highly oriented pyrolytic graphite (HOPG)

	Structure control of Pt-Sn bimetallic catalysts supported on highly oriented pyrolytic graphite (HOPG)
	Yao, Yunxi; Fu, Qiang; Zhang, Zhen; Zhang, Hui; Ma, Teng; Tan, Dali; Bao, Xinhe
刊名	applied surface science
	2008-04-30
卷号	254 期号:13 页码:3808-3812
关键词	bimetallic catalyst electrocatalyst HOPG PtSn CO adsorption STM
英文摘要	ptsn bimetallic catalyst nanoparticles were grown on highly oriented pyrolytic graphite (hopg) surfaces using the sequential deposition and co-deposition of pt and sn. the surface morphology and composition of the prepared ptsn catalysts were investigated by scanning tunneling microscopy and co adsorption experiment. it is found that the structure of the ptsn catalysts can be controlled by the deposition process. the deposition sequence of 1st pt and 2nd sn and co-deposition of pt and sn produce sn-shell and pt-core structure, while the deposition sequence of 1st sn and 2nd pt leads to the growth of individual pt and sn particles. the formation of various ptsn bimetallic structures was attributed to the different surface energy of pt and sn, and the interaction of the metals with the hopg surfaces. (c) 2007 elsevier b.v. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; materials science, coatings & films ; physics, applied ; physics, condensed matter
研究领域[WOS]	chemistry ; materials science ; physics
关键词[WOS]	ethanol fuel-cells ; alloy surfaces ; pd ; electrocatalysts ; overlayers ; clusters ; growth ; co ; nanoparticles ; reactivity
收录类别	SCI
语种	英语
WOS记录号	WOS:000255344500013
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/140793]
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
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Yao, Yunxi,Fu, Qiang,Zhang, Zhen,et al. Structure control of Pt-Sn bimetallic catalysts supported on highly oriented pyrolytic graphite (HOPG)[J]. applied surface science,2008,254(13):3808-3812.
APA	Yao, Yunxi.,Fu, Qiang.,Zhang, Zhen.,Zhang, Hui.,Ma, Teng.,...&Bao, Xinhe.(2008).Structure control of Pt-Sn bimetallic catalysts supported on highly oriented pyrolytic graphite (HOPG).applied surface science,254(13),3808-3812.
MLA	Yao, Yunxi,et al."Structure control of Pt-Sn bimetallic catalysts supported on highly oriented pyrolytic graphite (HOPG)".applied surface science 254.13(2008):3808-3812.