title: 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.
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.
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Graduate School of the Chinese Academy of Sciences, Beijing 100080, P R China.
authors.forename: Yanjuan
authors.initials: Y
authors.lastname: Xiang
authors.forename: Xiaochun
authors.initials: X
authors.lastname: Wu
authors.forename: Dongfang
authors.initials: D
authors.lastname: Liu
authors.forename: Xingyu
authors.initials: X
authors.lastname: Jiang
authors.forename: Weiguo
authors.initials: W
authors.lastname: Chu
authors.forename: Zhiyuan
authors.initials: Z
authors.lastname: Li
authors.forename: Yuan
authors.initials: Y
authors.lastname: Ma
authors.forename: Weiya
authors.initials: W
authors.lastname: Zhou
authors.forename: Sishen
authors.initials: S
authors.lastname: Xie
mesh_terms: D003460:Crystallization / Q000379:methods*; D006046:Gold / Q000737:chemistry*; D008422:Materials Testing; D008670:Metals / Q000737:chemistry; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010165:Palladium / Q000737:chemistry*; D010316:Particle Size; D013499:Surface Properties
chemical_list: D008670:Metals; D010165:Palladium; D006046:Gold