Resumo

MARIN, Tiffany A.; ISAZA, Franklin J.  e  CALDERON, Jorge A.. Electrodeposition of Polypyrrol/Platinum Films. Port. Electrochim. Acta [online]. 2009, vol.27, n.3, pp.397-407. ISSN 0872-1904.

The fuel cells are new alternatives for energy production with low environmental impact. Nowadays, conducting polymers are considered the most promising material to manufacture these type of cells because of their easy application and operation, being polypyrrole (PPy) one of them. The electrochemical synthesis of single-layer polypyrrole and two-layers or multiple-layers polypyrrole/platinum (PPy/Pt) films is reported in this paper. The films were obtained by electropolymerisation of pyrrole and cathodic deposition of platinum from ammonium hexachloroplatinate salt on stainless steel 304. The composition, morphology, conductivity and the electrochemical properties of the films were study by Raman Spectroscopy, SEM, Profilometer, impedance and cyclic voltammetry. The possible use of PPy and PPy/Pt films as electrodes for fuel cells is also discussed.

Palavras-chave : polypyrrole/platinum; conducting polymers; cyclic voltammetry.

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