Effect of nanocatalysis in colloidal solution on the tetrahedral and cubic nanoparticle SHAPE: electron-transfer reaction catalyzed by platinum nanoparticles

Article Abstract:

A study was conducted to examine and compare the shape stability of tetrahedral and cubic platinum nanoparticles used to catalyze the electron-transfer reaction between hexacyanoferrate ions and thiosulfate ions to form hexacyanoferrate ions and tetrathionate ions. The result confirms that the rate of dissolution of the surface platinum atoms is slower for the cubic shaped nanoparticles than for the tetrahedral shaped nanoparticles.

Molecular structure, Metal ions, ions

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Protection effects of hydrophile-grafted silicone copolymers on the formation of colloidal silver nanoparticles

Article Abstract:

A study was conducted to examine the silicone copolymers with different pendant hydrophilic groups such as diethanol tertiary amine (SHE) and triethyl quaternary amine (SQE), for their abilities to stabilize silver colloids. The result shows an involvement of the electrostatic interaction with protonated SHE and charged SQE copolymers.

Plastics Material and Resin Manufacturing, Plastics materials and resins, Silicone Resins, Silicones, Copolymers

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Electrochemical synthesis of silver nanoparticles

Article Abstract:

An electrochemical procedure based on the dissolution of a metallic anode in an aprotic solvent to obtain silver nanoparticles ranging from 2 to 7 nm is applied. The existence of an autocatalytic step in the synthesis mechanism is offered by the use of this technique.

Chemical synthesis

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