P2.7.7 Detection of Reducing Gases in Air: Experiment and Theory

Leonid I. Trakhtenberg, Genrikh N. Gerasimov, Tatyana V. Belysheva, Mortko A. Kozhushner, Vladimir. F. Gromov & Olusegun J. Ilegbusi
The sensor responses (com) of SnO2 + In2O3 and ZnO + In2O3 nanocomposite films to H2 and CO in air are investigated for varying oxide compositions. Sensor properties of the In2O3 + SnO2 composite are determined by the interaction between components, which leads to the transfer of electrons from In2O3 to SnO2. The degree of electron transfer increases under the action of reducing gases that is the cause of an increase in com when added...