Electrochemical investigations on liquid-state polymerizing systems: case of sol-gel polymerization of transition metal alkoxides

Article Abstract:

Research was conducted to examine the polymerization kinetics of zirconium propoxide in various conditions by following the diffusion of an electroactive probe attached to the metal center. Electrochemical probing with the functionalized acac ligand reveals that some decomplexation of the ligand takes place during the polymerization process. The electrochemical results were compared with information derived by using other techniques.

Research, Polymerization, Electrochemical analysis, Zirconium oxide

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Polyphenols deriving from chalcones: Investigations of redox activities

Article Abstract:

An investigation is performed on the redox properties of a series of hydroxychalcones, a group of polyphenols abundantly present in plants, by cyclic voltamemetry. Oxidation potentials of the phenolates correspond to species that are very easy to oxidize, lead to the rapid formation of nonradical species, underlining the potential antioxidant properties of these molecules

Polyphenols, Voltammetry

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Purification of pulsed laser synthesized single wall carbon nanotubes by magnetic filtration

Article Abstract:

Raw nanotubes are purified by utilizing filtration in a magnetic field and oxidation and the efficacy of using magnetic filtration alone, or combined with chemical-based or annealing-based oxidative treatments is investigated. It is concluded that magnetic filtration is very effective in removing metal catalysts and producing material with high quality and yields.

Nanotubes, Purification

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