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Site-specific Ag coating on concave Au nanoarrows by controlling the surfactant concentration

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Nanoscale Horiz., 2019, 4,940-946
DOI: 10.1039/C8NH00431E, Communication
Dashen Dong, Qianqian Shi, Debabrata Sikdar, Yunmeng Zhao, Yiyi Liu, Runfang Fu, Malin Premaratne, Wenlong Cheng
Three distinct site-specific Ag-coated Au nanoarrows are achieved by simply controlling the CTAC concentration of growth solution and analyzed with electron microscopy as well as elemental mapping. The CTAC concentration-dependent, facet-specific passivation represents a new strategy to design particle morphology as well as composition.
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