Mn. Rumyantseva et al., Nanocrystalline metal oxides as promising materials for gas sensors for hydrogen sulfide, RUS J AP CH, 74(3), 2001, pp. 434-439
Results of investigations aimed at creating a material possessing selective
sensitivity to gaseous hydrogen sulfide are presented. Polycrystalline fil
ms of doped tin dioxide were obtained by pyrolysis of an aerosol of appropr
iate organometallic compounds. The effect of copper and nickel oxides on th
e electrical properties, actual structure, and composition of polycrystalli
ne tin dioxide films was studied. The influence of trace amounts of gaseous
H2S on the electrical conductivity of the films was analyzed in detail.