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vol.51 issue2SYNTHESIS AND STRUCTURAL CHARACTERIZATION OF N-BENZOYL-TRYPTAMINE AND ITS NEW ANALOGUE N-SALICYLOYLTRYPTAMINE, A POTENTIAL ANTICONVULSANT AGENTSYNTHESIS, CHARACTERIZATION AND IN VITRO ANTIFUNGAL EVALUATION OF NOVEL BENZIMIDAZO[1,2-c]QUINAZOLINES author indexsubject indexarticles search
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Journal of the Chilean Chemical Society

On-line version ISSN 0717-9707

Abstract

DREYSE, PAULINA; RAMIREZ, GALO; RIQUELME, ANDREA  and  ISAACS, MAURICIO. SPECTROELECTROCHEMICAL STUDIES ON ITO MODIFIED ELECTRODES WITH A CONDUCTING COBALT (II) MACROCYCLE FILM IN THE ELECTROCHEMICAL REDUCTION OF CO2. J. Chil. Chem. Soc. [online]. 2006, vol.51, n.2, pp.923-926. ISSN 0717-9707.  http://dx.doi.org/10.4067/S0717-97072006000200017.

The spectroelectrochemical properties of a conducting polymer derived from Co(II) tetra-3-amino-phenyl-porphyrin,(poly-Co(II)-TAPP) were studied towards the electrochemical reduction of CO2 on ITO surface. Under inert atmosphere, the results show that the polymer present a stable Co(I) oxidation state only in basic pH while in more acidic solution this Co(I) does not stabilize. Under CO2 atmosphere the reduced polymer forms a stable adduct with no clear electronic localization. The formation and the stability of this adduct could explain the wide distribution of reaction products

Keywords : electrochemical reduction of carbon dioxide; porphyrins; conducting polymers.

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