Author(s)

Naima Maouche, Belkacem Nessark, Saloua Chelli, Salah Aeiyach, Idriss Bakas

Département de Génie des Procédés, Faculté de Technologie, Université de Sétif, Sétif, Algeria.
Laboratoire Interfaces, Traitements, Organisation et Dynamique des Systèmes, Université Paris, Paris, France.

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. The various components of your paper [title, text, heads, etc.] are already defined on the style sheet, as illustrated by the portions given in this document.

2, 2’-Bithiophene-5-carboxylic Acid; Metal Ions; Cyclic Voltammetry; IR and XPS; Electrocatalytic Activity; Ascorbic Acid

N. Maouche, B. Nessark, S. Chelli, S. Aeiyach and I. Bakas, "Electrosynthesis, Characterization and Electrocatalytic Behaviour of Organic-Metal Thin-Films Based on 2,2’-Bithiophene-5-carboxylic Acid and Metal Ions," American Journal of Analytical Chemistry, Vol. 5 No. 3, 2014, pp. 165-172. doi: 10.4236/ajac.2014.53020.