publication . Article . 2007

Polypyrrole electrodeposited on copper from an aqueous phosphate solution: Corrosion protection properties

M.I. Redondo; Carmel B. Breslin;
Open Access English
  • Published: 01 Jan 2007
  • Publisher: Elsevier
  • Country: Ireland
Abstract
Abstract Highly adherent and homogenous polypyrrole films were electrodeposited at copper from a dihydrogen phosphate solution. The polypyrrole films were electrosynthesized in the overoxidized state by cycling the copper electrode from –0.4 to 1.8 V (SCE) in a pyrrole-containing phosphate solution. The growth of the polypyrrole films was facilitated by the initial oxidation of the copper electrode in the phosphate solution to generate a mixed copper–phosphate, copper oxide or hydroxide layer. This layer was sufficiently protective to inhibit further dissolution of the copper electrode and sufficiently conductive to enable the electropolymerization of pyrrole at...
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Subjects
free text keywords: General Materials Science, General Chemistry, General Chemical Engineering, Materials science, Tafel equation, Corrosion, Aqueous solution, Copper, chemistry.chemical_element, chemistry, Copper oxide, chemistry.chemical_compound, Hydroxide, Inorganic chemistry, Coating, engineering.material, engineering, Polypyrrole
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