Preparation of silica-coated rhodium nanoparticles using water-in-oil microemulsion
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Kishida, M
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Kyushu Univ, Grad Sch Engn, Dept Mat Proc Engn, Chem Engn Grp,Higashi Ku, Fukuoka 8128581, JapanKyushu Univ, Grad Sch Engn, Dept Mat Proc Engn, Chem Engn Grp,Higashi Ku, Fukuoka 8128581, Japan
Kishida, M
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Tago, T
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Kyushu Univ, Grad Sch Engn, Dept Mat Proc Engn, Chem Engn Grp,Higashi Ku, Fukuoka 8128581, JapanKyushu Univ, Grad Sch Engn, Dept Mat Proc Engn, Chem Engn Grp,Higashi Ku, Fukuoka 8128581, Japan
Tago, T
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Hatsuta, T
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Kyushu Univ, Grad Sch Engn, Dept Mat Proc Engn, Chem Engn Grp,Higashi Ku, Fukuoka 8128581, JapanKyushu Univ, Grad Sch Engn, Dept Mat Proc Engn, Chem Engn Grp,Higashi Ku, Fukuoka 8128581, Japan
Hatsuta, T
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Wakabayashi, K
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Kyushu Univ, Grad Sch Engn, Dept Mat Proc Engn, Chem Engn Grp,Higashi Ku, Fukuoka 8128581, JapanKyushu Univ, Grad Sch Engn, Dept Mat Proc Engn, Chem Engn Grp,Higashi Ku, Fukuoka 8128581, Japan
Wakabayashi, K
[1
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[1] Kyushu Univ, Grad Sch Engn, Dept Mat Proc Engn, Chem Engn Grp,Higashi Ku, Fukuoka 8128581, Japan
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.