Impedance spectroscopy analysis of TiO2 thin film gas sensors obtained from water-based anatase colloids

Polymeric Micelle Assembly for the Direct Synthesis of Platinum-Decorated Mesoporous TiO2 toward Highly Selective Sensing of Acetaldehyde

“…12,13 The strong interaction between TiO 2 and Pt has been found to favor the catalytic activities in fuel cells, 14 hydrogen production, 15 catalytic reduction of CO 2 , 16 oxidation of hydrogen to water, 17 and sensing of different vapor organic compounds. 18,19 As the widely used technologies for the insertion of metals (metal oxides), there are laser-induced pyrolysis, 20 sputtering, 21 sol−gel, 22 colloidal deposition, 23 photoirradiation, 24 and chemical vapor deposition. 25 Post-treatment of porous materials with metal nanoparticles is also a very common method to insert metal nanoparticles into or onto the framework.…”

Analytical Methods for Determining Automotive Fuel Composition

“…The CAPs have been constructed in different geometries. The most common structure is planar with interdigitated electrodes having as sensitive layer conducting oxides (Ponce et al, 2009), porous silicon (Tutov et al, 2000) and polymers (Josse et al, 1996;Meruvia et al, 2007), for example. The chemocapacitor is based on the change of capacitance caused by a change of dielectric constant, due the modifications in polarization properties of molecules and/or atoms inside the active layer by external perturbations, such as the interaction with volatile organic compounds (VOC).…”

Surface Texturing of TiO2 Film by Mist Deposition of TiO2 Nanoparticles

“…The main applications of TiO 2 films are in solar cells [1], gas sensors [2], optical coatings [3], photo-catalytic systems [4], and other devices. For many applications, porous TiO 2 films have attracted considerable attention because of large surface areas [5], highly ordered porous structures [6], and well-defined pore sizes and porosity [7].…”