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Journal of Sol-Gel Science and Technology
Erschienen in: Journal of Sol-Gel Science and Technology 1/2011

01.07.2011 | Original paper

Electrochemical study of o-toluidine blue impregnated in mesoporous silica channels

verfasst von: Marco Antonio Utrera Martines, Devaney Ribeiro do Carmo, Gustavo Rocha de Castro, Laércio Caetano

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 1/2011

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Abstract

This paper reports an electrochemical study of ordered mesoporous silica impregnated with a cationic dye (o-toluidine blue), prepared with a non-ionic surfactant as the structure-directing agent. O-toluidine blue was chosen because of its utility as an electron transfer mediator (redox catalyst). O-toluidine blue impregnated mesoporous silica was characterized by nitrogen sorption porosimetry, small angle X-ray scattering, infrared spectroscopy, scanning electron microscopy and cyclic voltammetry using chemically modified carbon paste electrodes. Results indicate that the dye is located within the ordered mesopores of micron-sized silica spheres.
Vorheriger Artikel Anionic emulsion-directed synthesis of zeolite ZSM-5 with tunable morphology and Si/Al ratio
Nächster Artikel Triple-hybrid sub-micron particles: Ag@polymer@silica

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Metadaten
Titel
Electrochemical study of o-toluidine blue impregnated in mesoporous silica channels
verfasst von
Marco Antonio Utrera Martines
Devaney Ribeiro do Carmo
Gustavo Rocha de Castro
Laércio Caetano
Publikationsdatum
01.07.2011
Verlag
Springer US
Erschienen in
Journal of Sol-Gel Science and Technology / Ausgabe 1/2011
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-011-2480-1

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