Synthesis and Gas-Sensitive Chemoresistive Properties of TiO2:Cu Nanocomposite

Mokrushin, Artem S.; Gorban, Yu. M.; Симоненко, Н. П.; Simonenko, Tatiana L.; Simonenko, Elizaveta P.; Sevastyanov, V. G.; Кузнецов, Н. Т.

doi:10.1134/s0036023621040173

Cited by 5 publications

(1 citation statement)

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“…The stoichiometric TiO 2 semiconductor of n-type, which appears in three major phases (rutile, anatase, and brookite) can be rather easily converted between these phases by thermal procedures, which paves the way to tune analytical characteristics of gas sensors [11]. These phases are sensitive and could be used for the detection of oxygen alone [12][13][14] or in heterostructures with ZrO 2 to improve sensing characteristics [15][16][17]. Besides stoichiometric TiO 2 forms, very recently, a non-stoichiometric (TiO n ) that is sometimes indicated as TiO 2−x has also been applied in sensor design [1].…”

Section: Introductionmentioning

confidence: 99%

Gas Sensors Based on Titanium Oxides (Review)

2022

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Nanostructured titanium compounds have recently been applied in the design of gas sensors. Among titanium compounds, titanium oxides (TiO2) are the most frequently used in gas sensing devices. Therefore, in this review, we are paying significant attention to the variety of allotropic modifications of titanium oxides, which include anatase, rutile, brukite. Very recently, the applicability of non-stoichiometric titanium oxide (TiO2−x)-based layers for the design of gas sensors was demonstrated. For this reason, in this review, we are addressing some research related to the formation of non-stoichiometric titanium oxide (TiO2−x) and Magnéli phase (TinO2n−1)-based layers suitable for sensor design. The most promising titanium compounds and hetero- and nano-structures based on these compounds are discussed. It is also outlined that during the past decade, many new strategies for the synthesis of TiO2 and conducting polymer-based composite materials were developed, which have found some specific application areas. Therefore, in this review, we are highlighting how specific formation methods, which can be used for the formation of TiO2 and conducting polymer composites, can be applied to tune composite characteristics that are leading towards advanced applications in these specific technological fields. The possibility to tune the sensitivity and selectivity of titanium compound-based sensing layers is addressed. In this review, some other recent reviews related to the development of sensors based on titanium oxides are overviewed. Some designs of titanium-based nanomaterials used for the development of sensors are outlined.

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