The effect of platinum on the SnO2 sorption properties |
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| Authors: | M. V. Vinokurova A. A. Vinokurov L. E. Derlyukova |
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| Affiliation: | (1) Institute of Problems in Chemical Physics, Russian Academy of Sciences, pr. akad. Semenova 1, Chernogolovka, Moscow oblast’, 142432, Russia |
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| Abstract: | Chemisorption of SO2 and O2 at Pt-modified SnO2 is studied by using the vacuum static method, with simultaneous recording of electrical conductivity, over the 22 to 300°C temperature range. The SnO2 surface modification results in the increasing of SO2 adsorption and weakening of the gas-surface bonding. The chemisorption enhances the samples’ electrical conductivity. The surface pretreatment with oxygen leads to the decreasing of the successive SO2 chemisorption. |
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| Keywords: | electrical conductivity tin dioxide modification chemisorption sulfur dioxide |
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