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

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

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1396-1399
Number of pages4
JournalNanotechnology
Volume16
Issue number8
DOIs
Publication statusPublished - 2005 Aug 1

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Platinum
Nanostructured materials
Specific surface area
Energy dispersive spectroscopy
Nanocomposites
nanocomposites
Thermodynamic stability
Sintering
X ray photoelectron spectroscopy
Metals
Annealing
Semiconductor materials
Nanoparticles
synthesis
sintering
platinum
thermal stability
examination
nanoparticles
annealing

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Synthesis and structural characterization of thermally stable Pt/SnO 2 nanocomposite particles. / Fujihara, Shinobu; Ogino, Yuka; Imai, Hiroaki; Kim, Sae Hoon.

In: Nanotechnology, Vol. 16, No. 8, 01.08.2005, p. 1396-1399.

Research output: Contribution to journalArticle

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