Titanium dioxide based high temperature carbon monoxide selective sensor

Solar photocatalytic degradation of methyl orange dye using TiO2nanoparticles synthesised by sol–gel method in neutral medium

“…Methyl orange (MO) is a commonly used mono azo dyes in laboratory assays, textiles and other commercial products, and have to be removed from water due to its toxicity. [1] Titanium dioxide (TiO 2 ) nanomaterials are used in a wide range of applications such as (photo) catalysis, [2,3] sensor devices, [4,5] dye-sensitised solar cells, [6] etc. At present, among the semiconductor catalysts used in heterogeneous photocatalysis reactions, TiO 2 is the most practical because of its nontoxicity, high catalytic activity, strong oxidising capability and good stability.…”

Oxidation chemistry and electrical activity of Pt on titania: development of a novel zeolite-filter hydrocarbon sensor

“…Our group and collaborators have previously described the physical setup used to measure electrical resistance, so only a brief summary will be presented here [5,6,11]. All measurements were performed at 600 • C in a background of 5% O 2 /N 2 .…”

“…Our research group has examined titania-based sensors to detect gases at temperatures over 500 • C by correlating changes in resistance of titania to the interactions of the gas with the metal oxide [5,6]. It was shown that both CO and hydrocarbons cause changes in the sensor response due to oxidation on the oxide surface.…”

Nanosized Nb-TiO/sub 2/ gas sensors derived from alkoxides hydrolization

“…temperature ( 800 C) combustion processes, mainly in the automotive industry [6]- [8]. Moreover, anatase phase has been reported to be an excellent support in catalytic measurements and to pronounce selective oxidation of some molecules [2], [3]. Key points to achieve better suitable sensitive materials are both the crystalline structure and the grain size of the powders [9], [10].…”