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Effect of electropolymerisation conditions on the permeability of polyphenol films deposited on a vitreous carbon electrode

Belhadj Tahar, Noureddine and Savall, André Effect of electropolymerisation conditions on the permeability of polyphenol films deposited on a vitreous carbon electrode. (2012) Electrochimica Acta, 82. 427-433. ISSN 0013-4686

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Official URL: http://dx.doi.org/10.1016/j.electacta.2012.06.080


Polymeric films were prepared from alkaline (NaOH) phenol aqueous solutions on a vitreous carbon (VC) electrode by potentiostatic or galvanostatic electro-oxidation. Permeation through such films was studied by rotating-disk electrode using the ferricyanide redox couple, and by cyclic voltammetry using phenate ions. The influence of the electropolymerisation controllable parameters such as NaOH and phenol concentrations, potential or current applied, electrosynthesis time, temperature and hydrodynamic conditions (electrode rotation + solution magnetic stirring) on the permeability of these polymeric films was examined. Conditions for the removal of phenol by electropolymerisation are discussed on the basis of the permeability of polyphenol films obtained by electrosynthesis. Permeable films were formed for a concentration of free hydroxyl anion larger of 0.1 M. An increase of the temperature to 85°C favours the formation of highly permeable films, thus avoiding electrode fouling.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Electrochimica Acta website : http://www.sciencedirect.com/science/journal/00134686
HAL Id:hal-00878691
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Université de Monastir - UM (TUNISIA)
Laboratory name:
Deposited On:30 Oct 2013 14:54

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