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ELECTROCHEMICAL PREPARATION AND CHARACTERIZATION OF POLY (3-METHYLTHIOPHENE)-COBALT HEXACYANOFERRATE–MODIFIED PLATINUM ELECTRODE USING CYCLIC VOLTAMMETRY

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Author(s): Andra Sorina Dobre | Mirela Dascalu | C. Mihailciuc

Journal: Analele Universitatii Bucuresti : Chimie
ISSN 1220-871X

Volume: XVII;
Issue: II;
Start page: 07;
Date: 2008;
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ABSTRACT
Using consecutive cyclic voltammetry (CV), cobalt (II) hexacyanoferrate (CoHCF) and cobalt (II) hexacyanoferrate/poly (3-methyl thiophene) (CoHCF/P3MT) films have been prepared in fresh solutions formed between CoCl2 1mM, K3[Fe(CN)6] 0.5 mM and KCl 0.5 M for the Pt/CoHCF electrode and DMSO as a solvent, TBAPF6 0.1M and 3MT 50mM for the Pt/P3MT/CoHCF electrode. Then, using different cyclic voltammetry techniques, chemically modified electrodes, Pt/CoHCF and Pt/P3MT/CoHCF, were used to study their response in a phosphate buffer system of 7.2 pH and in ascorbic acid of various concentrations.
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