首页|Use of nanostructured and modified TiO_2 as a gas sensing agent

Use of nanostructured and modified TiO_2 as a gas sensing agent

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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.

titanium dioxidemetallic elementsdetection properties.

R. Alves Junior、H. P. A. Alves、J. M. Cartaxo

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Federal University of Campina Grande, Materials Science and Engineering Postgraduate Program, 58429-900, Campina Grande, PB, Brazil

Federal University of Rio Grande do Norte, Materials Science and Engineering Postgraduate Program, 59078-970, Natal, RN, Brazil

Federal University of Campina Grande, Laboratory of Materials Technology, 58429-900, Campina Grande, PB, Brazil

2021

10.1590/0366-69132021673833128

Ceramica

Ceramica

ISSN：0366-6913
年,卷(期)：2021.67(TN.383/384)
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