Synthesis and structural characterization of thermally stable Pt/SnO 2 nanocomposite particles

Shinobu Fujihara, Yuka Ogino, Hiroaki Imai, Sae Hoon Kim

研究成果: Article査読

5 被引用数 (Scopus)

抄録

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 °C, their specific surface area was found to be still higher than 100 m2 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.

本文言語English
ページ(範囲)1396-1399
ページ数4
ジャーナルNanotechnology
16
8
DOI
出版ステータスPublished - 2005 8 1

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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