材料科学
油胺
分散性
奥斯特瓦尔德成熟
聚乙烯吡咯烷酮
纳米颗粒
化学工程
纳米晶
纳米技术
高分子化学
工程类
作者
Renchun Yang,Dingxing Tang,Fengyun Ma,Ting Xian Tao,Yiming Ren,Zhiming Chen,Cuige Zhang,Fang Li
标识
DOI:10.1166/jnn.2012.6564
摘要
A facile one-pot route for the synthesis of monodisperse Ag nanocrystals with a narrow size distribution is described. Uniform Ag nanoparticles with the size of around 12 nm were obtained by reduction of AgNO3 in the presence of oleylamine and polymer polyvinylpyrrolidone (PVP) at low temperature. It is found that temperature has a significant effect on the sizes and the size distributions of the nanoparticles. Because irregular Ag nanoparticles are produced easily due to Ostwald ripening or kinetic control at both high temperature and low temperature, respectively, uniform nanocrystals can be obtained at an appropriate temperature (70 degrees C).
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