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

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

doi:10.1021/nl061722c

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

Nano Lett. 2006 Oct;6(10):2290-4. doi: 10.1021/nl061722c.

Authors

Yanjuan Xiang¹, Xiaochun Wu, Dongfang Liu, Xingyu Jiang, Weiguo Chu, Zhiyuan Li, Yuan Ma, Weiya Zhou, Sishen Xie

Affiliation

¹ Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Graduate School of the Chinese Academy of Sciences, Beijing 100080, P R China.

PMID: 17034099
DOI: 10.1021/nl061722c

Abstract

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.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Crystallization / methods*
Gold / chemistry*
Materials Testing
Metals / chemistry
Molecular Conformation
Nanostructures / chemistry*
Nanostructures / ultrastructure*
Palladium / chemistry*
Particle Size
Surface Properties

Substances

Metals
Palladium
Gold