The sensing behaviour of metal oxides (ZnO, CuO and Sm2O3) doped-SnO2 for detection of low concentrations of chlorinated volatile organic compounds

Graphene oxide/SnO2 Nanocomposite as Sensing Material for Breathalyzers: Selective Detection of Ethanol in the presence of Automotive CO and Hydrocarbons Emissions

“…SnO 2 has excellent electrical properties and high chemical stability. Although the exact mechanism of gas sensor behavior is not well known, it is basically the resistance change upon adsorption of oxygen [8]. SnO 2 -based gas sensors typically operate by monitoring changes in surface conductivity.…”

The sensing characteristics of ZnO tetrapods synthesized by microwave evaporation

“…So far, various strategies have been reported to improve sensing properties of metal oxide semiconductor gas sensors. To this aim, noble metals and n-or p-type metal oxides, as well as hetero-structuring of sensing materials have been investigated [10][11][12]. Over the last 10 years, ZnO nanostructures with variety of morphologies including nanorods, nanowires, nanofibers, nanolines, nanobelts, nanoneedles, nanoprisms, nanotubes, nano/microflowers, quantum dots, nanoparticles, nanofilms, sheets, and plates, nano/microspheres, nanopyramids and nanotetrapods have been synthesized and extensively studied for gas sensing applications [13].…”

Selective epichlorohydrin-sensing performance of Ag nanoparticles decorated porous SnO2architectures

“…Semiconductor gas sensors have been applied in the detection of volatile organic compounds (VOCs) due to their fast, high sensitivity and low cost characteristics. [1][2][3][4] Tin dioxide, as a well-known wide band gap semiconductor (E g = 3.6 eV at 300 K), is considered the most promising functional material due to its highly sensitive gas-sensing. [5][6][7][8] However, SnO 2 can react with several gases simultaneously, so the poor selectivity hinders its practical application.…”