Gas Sensing Properties of Thick Films Prepared Using Pt Loaded TiO<sub>2</sub> Nano Particles

Rane, Sapana S.; Arbuj, Sudhir S.; Joshi, Neha; Ghuge, Rahul; Rane, Sunit; Gosavi, Suresh

doi:10.1166/sl.2019.4046

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Tio 2 -Doping or Assistant Metals1

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2021

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“…When exposed to H 2 gas and 1% CO diluted in nitrogen at 300 ºC, the Pt nanoparticles promoted the dissociative adsorption of H 2 gas molecules on the surface of the TiO 2 NTs, leading to an increase of 7 order of magnitude in the sensor response. Rane et al [103] revealed that Pt in TiO 2 films, through photochemical reduction, is responsible for decreasing the operating temperature of the gas sensor (≥90 ºC) for different test gases, such as hydrogen, ammonia, and ethanol.…”

Section: Tio 2 -Doping or Assistant Metalsmentioning

confidence: 99%

Use of nanostructured and modified TiO2 as a gas sensing agent

Alves

Cartaxo

et al. 2021

Cerâmica

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Titanium dioxide (TiO 2 ) has attracted interest for sensory applications due to its high surface area and the high density of active adsorption sites. This review shows the effect of the nanostructure, synthesis technique, operating temperature, target gas, and the impact of incorporating metallic elements on the detection properties of TiO 2 . The studies showed that the TiO 2 gas detection process is closely related to surface reactions. Therefore, sensing properties, such as sensitivity, response time, and recovery, vary with factors that influence the surface reactions, such as chemical elements, morphology, microstructure of the depletion layer, and operating temperature.

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Section: Tio 2 -Doping or Assistant Metalsmentioning

confidence: 99%