Rapid Formation of Novel Au Core–Ag Shell Nanostructures by a Microwave-polyol Method
Rapid Formation of Novel Au Core–Ag Shell Nanostructures by a Microwave-polyol Method
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DOI：
10.1246/cl.2005.1518
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发表时间：
2005-10
影响因子：
1.6
通讯作者：
M. Tsuji;Nobuhiro Miyamae;K. Matsumoto;S. Hikino;T. Tsuji
中科院分区：
文献类型：
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作者：
M. Tsuji;Nobuhiro Miyamae;K. Matsumoto;S. Hikino;T. Tsuji
以聚乙烯吡咯烷酮（PVP）为封端剂，采用微波（MW）-多元醇法，通过两步还原AuCl 4 -和Ag +，制备了Au核-Ag壳结构的纳米粒子（记为Au@Ag）。当使用单晶多边形Au纳米片和纳米棒作为种子时，在MW加热仅2 min后制备了各种Au@Ag核-壳纳米结构的混合物。其中，产生了少量新颖的多边形和棒状Au@Ag纳米结构，其中Au核的形态被保存。
Au core-Ag shell bimetallic nanoparticles, denoted as Au@Ag, have been prepared by a microwave(MW)-polyol method through the two-step reduction of AuCl 4 - and Ag + ions in the presence of poly(vinylpyrrolidone) (PVP) as a capping reagent. When single crystal polygonal Au nanoplates and nanorods were used as seeds, a mixture of various Au@Ag core-shell nanostructures was prepared after MW heating for only 2 min. Among them, small amounts of novel polygonal and rod types of Au@Ag nanostructures, in which morphologies of Au core were conserved, were produced.