The effect of pH on the pyrrole electropolymerization on iron in malate aqueous solutions

• Tipo: Outra Publicação em Revista Científica Internacional
• Data: 2009

Autores

José Inácio Martins (Autor) FEUP; Bazzaoui, M (Autor) Outra; Reis, TC (Autor) Outra; Costa, SC (Autor) Outra; Nunes, MC (Autor) Outra; Martins, L (Autor) Outra; Bazzaoui, EA (Autor) Outra

Revista

Título: Progress in Organic Coatings

Vol. 65

Páginas: 62-70

ISSN: 0300-9440

Editora: Elsevier

Indexação

ISI Web of Knowledge - 29 Citações

ISI Web of Science

Scopus - 32 Citações

Outras Informações

ID Authenticus: P-003-MBR

DOI: 10.1016/j.porgcoat.2008.09.011

Abstract (EN): The influence of pH on pyrrole electropolymerization on iron surfaces in malate aqueous medium was analyzed using different electrochemical techniques. The sodium sulfate solution was used as reference. Homogeneous and adherent PPy films were obtained at pH between 4 and 7 in 0.2 M malic and 0.5 M pyrrole solution by potentiostatic mode, while the PPy coatings obtained from sulfate aqueous solutions in the same range of pH are non-adherents significantly. SEM analysis showed that PPy structure depends closely on the electrochemical conditions. FT-IR analysis confirms that PPy coatings have the same structure as those obtained on Pt electrodes.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9