Noticeable improvement in the toxic gas-sensing activity of the Zn-doped TiO₂films for sensing devices

Abstract

Zn-doped TiO2 films were deposited on ultrasonically treated alumina substrates using automatic nebulizer spray pyrolysis method. In report, thickness of the prepared films was gradually reduced and their Brunauer-Emmett-Teller (BET)...

Facile construction of bowknot-like CuO architectures for improved xylene gas sensing properties

“…Metal oxide semiconductor (MOS) gas sensing materials have received great attention and been extensively studied, the main advantages of which are high sensitivity, reliability and cost effectiveness. [1][2][3] However, the further development and application of MOS gas sensors are largely limited by their poor selectivity. That is because the simple chemo-resistive sensing mechanism makes it difficult for oxide semiconductor sensing materials to discriminate target gases with similar properties (for example, reducing ethanol, acetone or formaldehyde gas).…”