Sweet aqueous solution for electrochemical synthesis of polypyrrole part 1B: On copper and its alloys

• Type: Article in International Scientific Journal
• Date: 2007

Authors

Bazzaoui, A (Author) Other; José Inácio Martins (Author) FEUP; Bazzaoui, EA (Author) Other; Martins, L (Author) Other; Machnikova, E (Author) Other

Journal

Title: Electrochimica Acta

Vol. 52 No. 11

Pages: 3568-3581

ISSN: 0013-4686

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 28 Citations

ISI Web of Science

Scopus - 31 Citations

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Other information

Authenticus ID: P-004-BC0

DOI: 10.1016/j.electacta.2006.10.017

Abstract (EN): The electrochemical synthesis of polypyrrole (PPy) on copper and brass has been successfully achieved in sodium saccharinate and pyrrole aqueous medium. The synthesized coating under several electrochemical techniques such as cyclic voltammetry, galvanostatic and potentiostatic is homogeneous and adherent. PPy has been characterized by SEM, XPS, IR and Raman spectroscopy and its quality has been confirmed. The doping level obtained from N 1s XPS signal of the oxidized PPy depends on the electrochemical technique used to produce the film. The corrosion performance of PPy/copper and PPy/brass has been evaluated in 3% NaCl and 0.1 M HCl using linear polarization and electrochemical impedance spectroscopy. The results show that PPy coating electrodeposited from sodium saccharinate exhibits significant corrosion protection properties.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14