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2010-05-30 - Colloque/Présentation - communication orale - Anglais - 1 page(s)

Zhang Chao, Debliquy Marc , Liao Hanlin, "Microstructure and sensing performance of atmospheric plasma-sprayed (APS) ZnO coatings for NO2 sensors" in International Thermal Spray Conference, Singapore, 2010

  • Codes CREF : Capteurs et périphériques (DI2563)
  • 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) This work studied the possibility of using a sensor based on plasma-sprayed zinc oxide (ZnO) sensitive layer for NO2 detection. The atmospheric plasma spray process was employed to deposit ZnO gas sensing layer and the obtained coating structure was characterized by scanning electron microscopy and X-ray diffraction analysis. The influences of gas concentration, working temperature, water vapor in testing air on NO2 sensing performance of the ZnO sensors were studied. ZnO sensors showed a good sensitivity and selectivity to NO2 at an optimal working temperature.
   
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