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2010-09-07 - Colloque/Article dans les actes sans comité de lecture - Anglais - 4 page(s)

Zhang Chao, Boudiba Abdelhamid , Navio Bernabeu Cristina, Bittencourt Carla , Snyders Rony , Debliquy Marc , "Hydrogen sensing characteristics of reactive magnetron sputtered tungsten oxide films activated by platinum" in Twelfth European Inter-Regional Conference on Ceramics, Mons, Belgium

  • Codes CREF : Capteurs et périphériques (DI2563), Matériaux céramiques et poudres (DI2744)
  • Unités de recherche UMONS : Chimie des interactions plasma-surface (S882), Science des Matériaux (F502)
  • Instituts UMONS : Institut de Recherche en Science et Ingénierie des Matériaux (Matériaux)

Abstract(s) :

(Anglais) Combining reactive magnetron sputtering with dip coating, Pt impregnated WO3 films for sensing H2 were produced. The microstructure, chemical composition and crystallographic phase of the films were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy and X-ray Diffraction. The effects of heat-treatment and the working temperature on H2 sensing characteristics were evaluated. A poor recovery of the sensors resistance at the onset of the H2 sensing test was observed. Thermal treated sensors at 450°C for 24 h showed improved recovery characteristics.