Study of redox processes in zeolite Y-associated 2,4,6-triphenylthiophyrilium ion by square wave voltammetry

Article Abstract:

The electrochemical responses of 2,4,6-triphenylthiophyrilium ion (TTP(super +)) in solution and attached to zeolite Y () are described using cyclic and square wave voltammetries upon immersion of zeolite modified polymer film electrodes in MeCN and aqueous media. In contact with aqueous electrolytes, displays a reversible one-electron transfer at -0.25 V in contrast with the adsorptive behavior observed for solid TTP(BF4) attached to graphite, platinum and gold electrodes.

Usage, Voltammetry

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Photocatalytic activity of structured mesoporous Ti[O.sub.2] materials

Article Abstract:

The preparation of a mesoporous titanium dioxide material whose walls contain colloidal Ti[O.sub.2] nanoparticles embedded in silica domains having mesoporous periodic structure was described. The pore diameter ranged between 3.8 and 10.9 nm, the BET surface area varied, and the turnover frequency of the photocatalytic activity was much higher for the mesoporous titania.

Industrial sand, Silica & Silica Sand, Industrial Sand Mining, Silica, Titanium dioxide, Silicon dioxide, Nanoparticles

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Model for solid-state voltammetry of zeolite-associated species

Article Abstract:

The electrochemical reduction/oxidation of zeolite-associated species from the model of Lovric and Scholz for redox conductive mirocrystals and the model of Andrieux and Saveant for redox polymers is described. It is assumed that the reaction starts at the three-phase boundary between electrode, zeolite particle, and electrolyte.

Electrochemical reactions

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