Semiconductor Sensors of Gases Based on Pd/SnO2-Sb2O5 Materials

Palladium-containing materials based on antimony-doped tin dioxide have been developed to create a gas-sensitive layer of semiconductor sensors on a number of small molecules. Their catalytic activity in the CH 4 , CO, and H 2 oxidation reactions performed according to the Eley–Rideal mechanism has...

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Bibliographic Details
Published in:Theoretical and experimental chemistry 2021-03, Vol.57 (1), p.64-70
Main Authors: Oleksenko, L. P., Maksymovych, N. P.
Format: Article
Language:English
Subjects:
Antimony
Carbon monoxide
Catalytic activity
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Methane
Operating temperature
Oxidation
Palladium
Sensors
Tin dioxide
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Summary:Palladium-containing materials based on antimony-doped tin dioxide have been developed to create a gas-sensitive layer of semiconductor sensors on a number of small molecules. Their catalytic activity in the CH 4 , CO, and H 2 oxidation reactions performed according to the Eley–Rideal mechanism has been studied. The sensors based on the obtained materials show a significant response to CO, H 2 , and light hydrocarbons (CH 4 , C 2 H 6 , C 2 H 2 ), while the dependence of the sensor response value of each of these gases on the palladium content is extreme. It is established that the optimal operating temperature of the sensor, which corresponds to the maximum of its response, is determined by the reactivity of the studied gases.
ISSN:0040-5760
1573-935X
DOI:10.1007/s11237-021-09675-5