Effect of catalytic activity on the metallic nanoparticle size distribution: electron-transfer reaction between Fe(CN)6 and thiosulfate ions catalyzed by PVP-platinum nanoparticles

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.

author: El-Sayed, Mostafa A., Datta, Supriyo, Kubiak, Clifford P., Roch, Jean-Francois, Zyss, Joseph, Narayanan, Radha
Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Platinum, Ions, Thermal properties

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA

Activation energy of the reaction between hexacyanoferrate (III) and thiosulfate ions catalyzed by platinum nanoparticles

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.

author: Vitukhnovsky, Alexei G., Auweraer, Mark Van der,, Yin Li,, Petroski, Janet, El-Sayed, Mostafa A.
Chemical reactions, Catalysis, Sulfates

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA

Raman studies on the interaction of the reactants with the platinum nanoparticle surface during the nanocatalyzed electron transfer reaction

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.

author: El-Sayed, Mostafa A., Narayannan, Radha
Raman spectroscopy

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


subjects list: Research, Electron transport, Electric properties, Platinum compounds
This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.