TITLE:
Electrosynthesis, Characterization and Electrocatalytic Behaviour of Organic-Metal Thin-Films Based on 2,2’-Bithiophene-5-carboxylic Acid and Metal Ions
AUTHORS:
Naima Maouche, Belkacem Nessark, Saloua Chelli, Salah Aeiyach, Idriss Bakas
KEYWORDS:
2, 2’-Bithiophene-5-carboxylic Acid; Metal Ions; Cyclic Voltammetry; IR and XPS; Electrocatalytic Activity; Ascorbic Acid
JOURNAL NAME:
American Journal of Analytical Chemistry,
Vol.5 No.3,
February
17,
2014
ABSTRACT:
2,2’-Bithiophene-5-carboxylic
acid (BTA) thin-films on platinum (Pt) electrodes
were electrochemically prepared in acetonitrile solution containing 0.1 M tetrabutylammonium
perchlorate (TBAP) and 0.05 M
BTA. These films were complexes with several metal ions such as Cu2+, Ag+ and Co2+. Their structural characteristics were compared with those
of powder complexes chemically prepared from BTA and the corresponding metal
ion. IR and XPS techniques reveal that the film complexes with metal ions have
the same structures as the corresponding powder complexes. The electrocatalytic
activity of BTA film-metal ions has been investigated toward ascorbic acid (AA) oxidation and compared
to that obtained on a free BTA film. BTA film-metal ions exhibit good catalytic proprieties and better detection
of AA than a free BTA film. This new propriety allows these films to be used as
electrochemical sensors. This electronic document is a “live” template.
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