Abstract
Nanosized Ce-containing materials based on SnO2 with Sb additives were obtained by a sol-gel method using tin (II) oxalate, hydrogen peroxide, antimony (III) chloride and cerium (III) acetate as precursors. The average particle sizes of the synthesized materials were found to be ca. 9 nm. It was shown that the sensors based on these nanocomposites exhibit high sensitivities to hydrogen microconcentrations in air, long-term stabilities of their parameters and demonstrate a wide range of the detectable hydrogen concentration (44 − 935 ppm H2 in air).
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