Formation of rectangularly shaped Pd/Au bimetallic nanorods: Evidence for competing growth of the Pd shell between the {110} and {100} side facets of Au nanorods

被引:180
作者
Xiang, Yanjuan
Wu, Xiaochun [1 ]
Liu, Dongfang
Jiang, Xingyu
Chu, Weiguo
Li, Zhiyuan
Ma, Yuan
Zhou, Weiya
Xie, Sishen
机构
[1] Natl Ctr Nanosci & Nanotechnol, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China
[3] Peking Univ, Electromicroscopy Lab, Beijing 100871, Peoples R China
关键词
D O I
10.1021/nl061722c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this letter, we report the competing growth of a Pd shell on the {110} and {100} facets of Au nanorods (Au NRs). This results in the disappearance of unstable {110} facets and the formation of rectangularly shaped Pd/Au bimetallic nanorods that show only four stable {100} side surfaces. The energy minimization to a more stable morphology is believed to be the driving force for the formation of the rectangular shape of the Pd shell.
引用
收藏
页码:2290 / 2294
页数:5
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