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 |
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| Authors: | Xiang Yanjuan Wu Xiaochun Liu Dongfang Jiang Xingyu Chu Weiguo Li Zhiyuan Ma Yuan Zhou Weiya Xie Sishen |
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| Affiliation: | Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Graduate School of the Chinese Academy of Sciences, Beijing 100080, P R China. |
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| 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. |
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