Article Abstract:
Studies done on the stability and catalytic activity of the PVP-Pt nanoparticle during its catalytic function for the electron-transfer reaction between hexacyanoferrate(III) ions and thiosulfate ions is presented. Studies reveal that the hexacyanoferrate(III) ions alone dissolve the Pt from the nanoparticle surface to form a cyano complex, as expected from thermodynamic considerations whereas thiosulfate seems to bind to the nanoparticle surface.
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Article Abstract:
A temperature-dependant study is carried out for the platinum-nanoparticle-catalyzed electron-transfer reaction between hexacyanoferrate (III) and thiosulfate ions in the temperature range of 20-70 degree Celsius. The findings indicate that this behavior affected the temperature dependence of the catalytic reaction and the decrease in the catalyst surface area due to the increase of nanoparticle aggregation.
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Article Abstract:
Raman spectroscopy is used to understand the specific interactions of the individual reactants associated with the electron transfer reaction with the platinum nanoparticle surface. The results would help determine the mode of binding of thiosulfate ions onto the nanoparticle surface as well as provide more details about how the hexacyanoferrate-(III) ions interact with platinum nanoparticle surface.
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