Ultrasonic-assisted synthesis of monodisperse single-crystalline silver nanoplates and gold nanorings.
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.
Jiang
Li-Ping
LP
Laboratory of Life Analytical Chemistry, Department of Chemistry, Nanjing University, Nanjing 210093, People's Republic of China.
Xu
Shu
S
Zhu
Jian-Min
JM
Zhang
Jian-Rong
JR
Zhu
Jun-Jie
JJ
Chen
Hong-Yuan
HY