| abstract |
FIELD: chemistry. n SUBSTANCE: invention comprises producing nano-heterogeneous material based on whisker crystals of n-type oxides SnO 2 , ZnO, In 2 O 3 and nano-clusters of p-type oxides CuO, NiO, Co 3 O 4 immobilised on the surface of said crystals. The method includes producing whisker crystals from vapour and impregnating the crystals with salt solutions, followed by annealing to form p-n heterocontacts. n EFFECT: high selective sensitivity of the sensor to H 2 S and derivatives thereof in air. n 3 cl, 2 ex |