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2013-01-11 - Article/Dans un journal avec peer-review - Anglais - 7 page(s)

Zhang Chao , Kanta Abdoul Fatah , Hong Yin, Boudiba Abdelhamid , D'haen Jan, Olivier Marie-Georges , Debliquy Marc , "H2 sensors based on WO3 thin films activated by platinum nanoparticles synthesized by electroless process" in International Journal of Hydrogen Energy, 38

  • Edition : Pergamon Press - An Imprint of Elsevier Science
  • Codes CREF : Capteurs et périphériques (DI2563), Chimie des surfaces et des interfaces (DI1327)
  • Unités de recherche UMONS : Science des Matériaux (F502)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)
  • Centres UMONS : Ingénierie des matériaux (CRIM)

Abstract(s) :

(Anglais) Platinum (Pt) nanoparticles were successfully synthesized on tungsten oxide (WO3) thin films by electroless process without any further post-treatment. The prepared Pt nanoparticles were characterized by X-ray diffraction, X-ray photoelectron spectroscopy and field-emission scanning electron microscopy. Gas sensors based on the Pt–WO3 films were found to provide repeatable and significant responses to ppm-level H2. The size of Pt nanoparticles increases with the deposition time and has improved the sensing characteristics of the sensors. The work in this paper paves a facile way to the fabrication of Pt nanoparticles on metal oxide surface at a low temperature (68 °C).

Identifiants :
  • DOI : 10.1016/j.ijhydene.2012.12.017

Mots-clés :
  • (Anglais) Electroless; Tungsten oxide; Platinum; Hydrogen sensor