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Facets and surface relaxation of tetrahexahedral platinum nanocrystals

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Facets and surface relaxation of tetrahexahedral platinum nanocrystals.pdf (360.2Kb)
Date
2007-09
Author
Ding, Yong
Gao, Yifan
Wang, Zhong Lin
Tian, Na
田娜
Zhou, Zhi-You
周志有
Sun, Shi-Gang
孙世刚
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  • 化学化工-已发表论文 [14469]
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Abstract
Platinum tetrahexahedral (THH) nanocrystals have been prepared by an electrochemical treatment of Pt nanospheres supported on glassy carbon by square-wave potential [N. Tian , Science 316, 732 (2007)]. In this paper, the shape and facets of the THH nanocrystals have been characterized by transmission electron microscopy. Most of the exposed surfaces are close to {730} facets. Detailed relaxation of the surface atoms has been observed at surface steps. It is anticipated that the high density of atomic steps and kinks is likely related to the enhanced catalytic activity of the THH nanocrystals.
Citation
APPLIED PHYSICS LETTERS,2007,91(12):121901
URI
http://dx.doi.org/doi:10.1063/1.2785953
https://dspace.xmu.edu.cn/handle/2288/9291

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