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

Xiang, Yanjuan; Wu, Xiaochun; Liu, Dongfang; Jiang, Xingyu; Chu, Weiguo; Li, Zhiyuan; Ma, Yuan; Zhou, Weiya; Xie, Sishen

doi:10.1021/nl061722c.s001

nl061722c_si_001.pdf (135.25 kB)

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

journal contribution

posted on 2006-10-11, 00:00 authored by Yanjuan Xiang, Xiaochun Wu, Dongfang Liu, Xingyu Jiang, Weiguo Chu, Zhiyuan Li, Yuan Ma, Weiya Zhou, Sishen Xie

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.