Sorption processes on the surfase of metal oxide gas sensors in the determination of low concentrations of hydrogen sulfide
То create a gas-sensitive layers of metal oxide sensors used nanopowder sintering of tin dioxide with catalytic additives. Tin dioxide powder was synthesized by thermal dehydration of the colloidal particles of tin acids obtained by hydrolysis of the acetate of tin. Catalytic addition of Pd, Pt, Au and CuO increased sensory response in relation to hydrogen sulfide. The lowest detection limit for hydrogen sulfide sensor was achieved with the addition of CuO to less than 1 ppm