Preparation of silica-coated rhodium nanoparticles using water-in-oil microemulsion

被引:31
作者
Kishida, M [1 ]
Tago, T [1 ]
Hatsuta, T [1 ]
Wakabayashi, K [1 ]
机构
[1] Kyushu Univ, Grad Sch Engn, Dept Mat Proc Engn, Chem Engn Grp,Higashi Ku, Fukuoka 8128581, Japan
关键词
D O I
10.1246/cl.2000.1108
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Monodispersed silica-coated rhodium nanoparticles were synthesized by using the w/o microemulsion of polyoxyethylene (15) cetyl ether / cyclohexane / water system. By hydrolysis of tetraethyl orthosilicate in the presence of rhodium complex nanoparticles followed by thermal treatment, the silica-coated metallic rhodium nanoparticles were obtained in the microemulsion. In the composite nanoparticles, a metallic rhodium particle with a diameter of 4 nm was located nearly at the center of a spherical silica particle. The thickness of silica layer was 14 nm.
引用
收藏
页码:1108 / 1109
页数:2
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