Ultrasonic-assisted synthesis of monodisperse single-crystalline silver nanoplates and gold nanorings |
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Authors: | Jiang Li-Ping Xu Shu Zhu Jian-Min Zhang Jian-Rong Zhu Jun-Jie Chen Hong-Yuan |
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Institution: | Laboratory of Life Analytical Chemistry, Department of Chemistry, Nanjing University, Nanjing 210093, People's Republic of China. |
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Abstract: | A simple sonochemical route was developed for the crystal growth of uniform silver nanoplates and ringlike gold nanocrystals in a N,N-dimethylformamide solution. The platelike structures were generated from the selective growth on different crystal planes in the presence of poly(vinylpyrrolidone) and the ultrasonic-assisted Ostwald ripening processes. The silver nanoplates in solution served as the templates for the synthesis of ringlike gold crystals via a displacement reaction. Both the silver nanoplates and gold nanorings were highly oriented single crystals with (111) planes as the basal planes. |
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