Synthesis and structural characterization of thermally stable Pt/SnO2 nanocomposite particles

被引：4
作者：
Fujihara, S
Ogino, Y
Imai, H
Kim, SH
机构：
[1] Keio Univ, Fac Sci & Technol, Dept Appl Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan
[2] Kangnung Natl Univ, Dept Ceram Engn, Gangneung 210702, Gangwon, South Korea
来源：
NANOTECHNOLOGY | 2005年 / 16卷 / 08期
关键词：
D O I：
10.1088/0957-4484/16/8/070
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Thermally stable (not sinterable) Pt/SnO2 (metal/semiconductor) nanocomposite particles were successfully prepared by chemical methods consisting of thermohydrolysis of SnCl4, hydrothermal processes of resultant SnO2 nanoparticles and subsequent photo-deposition of Pt using H2PtCl6. XRD, HRTEM, EDS and XPS examinations revealed that platinum nanodomains (about 2 nm in size) could be deposited on the surface of nanocrystalline SnO2 particles (about 8 nm). After annealing the Pt/SnO2 nanopowders at 500 degrees C, their specific surface area was found to be still higher than 100 m(2) g(-1), thereby indicating high thermal stability against particle growth and sintering. These results show an important aspect in loading nanomaterials. in practical devices without losing the nanocrystalline nature.
引用
收藏
页码：1396 / 1399
页数：4
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