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2017-06-30 - Article/Dans un journal avec peer-review - Anglais - 7 page(s)

Geng Xin, Debliquy Marc , "Flexible NO2 gas sensors based on sheet-like hierarchical ZnO1-x coatings deposited on polypropylene papers by suspension flame spraying" in journal of the taiwan institute of chemical engineers, 75, 280–286

  • 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) 2D sheet-like ZnO coatings composed of nanoparticles were deposited on the flexible polypropylene substrates equipped with gold electrodes by in three steps. ZnO powders with sheet-like hierarchical structure was first synthesized by direct precipitation method. And then the as-synthesized powder was dispersed in anhydrous ethanol to form a suspension. At last, the suspension was injected into the acetylene-oxygen flame to deposit ZnO sensitive layers. XRD and FE-SEM characterization confirmed that the as-sprayed coatings were present a hexagonal phase and exhibited a porous hierarchical structure. The sensors using as-sprayed ZnO coatings as sensitive layers showed good response to sub-ppm level NO2 at room temperature under white light LED illumination.