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KMID : 1059519850290020172
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Journal of the Korean Chemical Society
1985 Volume.29 No. 2 p.172 ~ p.177
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Electrochemical Oxidation of Sulfur Dioxide on Tin Oxide Thin Film Electrode
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Hong Jong-In
Paik Woon-Kie
Kim Ha-Suck
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Abstract
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The semiconducting property of Sb-doped tin oxide thin film electrode was investigated and the electrocatalytic effect of this electrode for SO2 (or sulfite, bisulfite ions) oxidation reaction was studied under various conditions. The anodic oxidation of SO2 at tin oxide thin film electrode commenced at lower potential with increasing pH, and good electrocatalytic effect was shown of SO3= oxidation in basic solution. In the acidic solutions the electrocatalytic effect of platinum-or palladium-incorporated tin oxide electrode was found to be due to the sites of Pt or Pd exposed on the electrode surface. The electrocatalytic effect of tin oxide electrode was distinctive from that of Pt-or Pd-containing electrodes.
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