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Electropolymerization of phenol on a vitreous carbon electrode in acidic aqueous solution at different temperatures

Belhadj Tahar, Noureddine and Savall, André Electropolymerization of phenol on a vitreous carbon electrode in acidic aqueous solution at different temperatures. (2011) Journal of Applied Electrochemistry, vol. 41 (n° 8). pp. 983-989. ISSN 0021-891X

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Official URL: http://dx.doi.org/10.1007/S10800-011-0327-7

Abstract

Electrochemical oxidation of phenol in acidic aqueous solution was studied on a vitreous carbon electrode at different temperatures in the range of 25–85 °C by cyclic voltammetry and chronoamperometry. The kinetic aspect of the phenol oxidation was investigated as a function of its concentration and temperature. The electrode deactivation by formation of an adherent, compact, and insulating polymeric film was examined by monitoring the decrease in the peak current of phenol oxidation during the course of successive potential scans. Repeated potential scans in the region of water stability did not reactivate the electrode whatever the temperature used. Chronoamperometric curves recorded at different potentials in the region of water decomposition shown that the electrochemical activity of the electrode was partially restored even when performed at low temperature (25 °C).

Item Type:Article
Additional Information:Thanks to Springer editor. The definitive version is available at http://www.springerlink.com The original PDF of the article can be found at : http://www.springerlink.com/content/c872g8245623q340/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Université de Monastir - UM (TUNISIA)
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Deposited By:Audrey LEFEVRE

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