Designing of LaCrO3 − TiO2 nanocomposites p: n heterojunction-based sensor material for the selective detection of volatile petrol vapors (PV) and CO2 gas vapors

The Al3+ doped modified ZnO sensor material: Fabrication, characterization and gas sensing characteristics of some environmental pollutant and greenhouse gases

“…The pollution arises due to toxic pollutants is not only harmful to human beings but also to the various animals which are prolonged exposure to these gases. The common pollutants have their threshold limit and tolerance capacity for every living organisms (human and animals), but after crossing this threshold limit the severe effect can be observed in the form severe fatality [6][7][8][9][10][11][12].…”

SrTiO3–TiO2 Heterostructured Nanotube Arrays for Ultrafast Ethanol Sensing

“…Conventional semiconducting metal oxides such as TiO 2 , − In 2 O 3 , , CO 3 O 4 , CuO, Fe 2 O 3 , In 2 O 3 , SnO 2 , , and WO 3 , , have widely been used for the detection of volatile organic compounds (VOCs). The fascinating physical and chemical properties such as stability, large band gap, high surface-to-volume ratio, the possibility of synthesizing different nanoforms, biodegradability, nontoxicity, and low cost of TiO 2 among other metal oxides make it the most promising gas/VOC sensing material. , Many researchers introduced a variety of TiO 2 morphologies including one-dimensional (1D), , two-dimensional (2D), and three-dimensional (3D). 3,4,9 1D nanomaterials, mainly TiO 2 nanotubes, have been reported as potential gas sensing materials ,, due to their extremely high effective surface area.…”

“…Perovskite semiconductor oxides (ABO 3 ) are the potential gas sensing materials for long-term sensing performance because of their stability in thermal and chemical atmospheres, high reaction temperature, structural and chemical stabilities, and superior reliability. ,,− Tuning of B-site cations (Al, Co, and Ti) in nanostructured perovskites can improve the VOC sensing properties by modulating the electronic and catalytic properties . A range of perovskite materials (ABO 3 ) like LaFeO 3 , ZnSnO 3 , ,, LaRhO 3 , and SrTiO 3 ,,− have been widely explored in ethanol sensing applications.…”

“…The fascinating physical and chemical properties such as stability, large band gap, high surface-to-volume ratio, the possibility of synthesizing different nanoforms, biodegradability, nontoxicity, and low cost of TiO 2 among other metal oxides make it the most promising gas/ VOC sensing material. 1,14 Many researchers introduced a variety of TiO 2 morphologies including one-dimensional (1D), 1,15 two-dimensional (2D), 9 and three-dimensional (3D). 3,4,9 1D nanomaterials, mainly TiO 2 nanotubes, have been reported as potential gas sensing materials 1,15,16 due to their extremely high effective surface area.…”

“…1,14 Many researchers introduced a variety of TiO 2 morphologies including one-dimensional (1D), 1,15 two-dimensional (2D), 9 and three-dimensional (3D). 3,4,9 1D nanomaterials, mainly TiO 2 nanotubes, have been reported as potential gas sensing materials 1,15,16 due to their extremely high effective surface area. However, their limited time stability, high working temperature (200−400 °C), and high reactivity to the traces of moisture inhibit the sensing characteristics.…”