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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
关键词Bimetallic Catalyst Electrocatalyst Hopg Ptsn Co Adsorption Stm
刊名APPLIED SURFACE SCIENCE
2008-04-30
DOI10.1016/j.apsusc.2007.12.007
254期:13页:3808-3812
收录类别SCI
文章类型Article
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
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.
语种英语
WOS记录号WOS:000255344500013
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140793
专题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
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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.
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