Functional nanocomposite films have been obtained by doping sol-gel films with metal and semiconductor nanoparticles for gas sensor application. Three synthetic approaches were adopted, each of them characterized by a systematic increase of the final materials morphology, structure and micro-structure control. The synthesized layers comprised of an inorganic porous matrix (SiO2, TiO2 and NiO) containing nanosized metal (Au, Pt) or semicon-ductor crystals (NiO), and were shown to be active materials for chemical recognition of H2 and CO. The films were deposited onto different sensing supports, leading to successful gas detection via optical, conductometric and surface acoustic wave interfaces.
Sol-gel film containing metal and semiconductor nanoparticles for gas sensing
MARTUCCI, ALESSANDRO
2010
Abstract
Functional nanocomposite films have been obtained by doping sol-gel films with metal and semiconductor nanoparticles for gas sensor application. Three synthetic approaches were adopted, each of them characterized by a systematic increase of the final materials morphology, structure and micro-structure control. The synthesized layers comprised of an inorganic porous matrix (SiO2, TiO2 and NiO) containing nanosized metal (Au, Pt) or semicon-ductor crystals (NiO), and were shown to be active materials for chemical recognition of H2 and CO. The films were deposited onto different sensing supports, leading to successful gas detection via optical, conductometric and surface acoustic wave interfaces.Pubblicazioni consigliate
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