Sonochemically prepared platinum-ruthenium bimetallic nanoparticles

被引：72
|
作者：
Vinodgopal, K [1 ]
He, YH
Ashokkumar, M
Grieser, F
机构：
[1] Univ Melbourne, Sch Chem, Particulate Fluid Proc Ctr, Parkville, Vic 3010, Australia
[2] Indiana Univ NW, Dept Chem, Gary, IN 46408 USA
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2006年 / 110卷 / 09期
关键词：
D O I：
10.1021/jp060203v
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Colloidal bimetallic nanoparticles of Pt-Ru have been synthesized by sonochemical reduction of Pt(II) and Ru(III) in aqueous solutions. Transmission electron microscope (TEM) images indicate that sequential reduction of the Pt(II) followed by the Ru(III) produces particles with a core shell (Pt@Ru) morphology. In the presence of sodium dodecyl sulfate, SDS, as a stabilizer, the particles have diameters between 5 and 10 nm. When polyvinyl-2-pyrrolidone, PVP, is used as the stabilizer, the rate of reduction is much faster, giving ultrasmall bimetallic particles of similar to 5 nm diameter.
引用
收藏
页码：3849 / 3852
页数：4
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