Breslin, Carmel B. and Fenelon, Anna M.
(2003)
The Corrosion Protection of Copper and Copper Alloys using an Electrodeposited Conducting Polypyrrole Coating.
Journal of Corrosion Science and Engineering.
C012-C019.
ISSN 1466-8858
Abstract
Adherent polypyrrole films were electropolymerized from a near
neutral sodium oxalate solution at pure Cu, CuZn and CuNi electrodes.
The growth of these films was facilitated by the formation of a
pseudo-passive oxalate layer. This layer was sufficiently protective to minimize dissolution of the substrate, but sufficiently conductive to enable the electropolymerization of pyrrole at the interface, and the generation of an adherent polypyrrole film. The rate of
electropolymerization at the CuNi layer was reduced significantly by the formation of a nickel-rich oxide phase, however, the presence of Cu2+ increased the rate of polymer growth, enabling the formation of a thin polypyrrole layer during the early stages of polymerization.
Likewise, the presence of zinc in the oxalate layer generated at the
CuZn electrode reduced somewhat the rate of polymer formation.
These films exhibited good corrosion protection properties in an
acidified chloride solution.
| Item Type: |
Article
|
| Additional Information: |
Preprint of paper submitted to the Conference "Corrosion Science in the 21st Century", held at UMIST in July 2003. |
| Keywords: |
Copper; Polypyrrole; Corrosion Protection; Electro-
polymerization; oxalate; |
| Academic Unit: |
Faculty of Science and Engineering > Chemistry |
| Item ID: |
7958 |
| Depositing User: |
Dr. Carmel Breslin
|
| Date Deposited: |
22 Feb 2017 15:18 |
| Journal or Publication Title: |
Journal of Corrosion Science and Engineering |
| Publisher: |
Center for Electrochemical Science and Engineering, University of Virginia |
| Refereed: |
Yes |
| Funders: |
Enterprise Ireland (EI) |
| URI: |
|
| Use Licence: |
This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available
here |
Repository Staff Only(login required)
 |
Item control page |
Downloads per month over past year
Origin of downloads
Altmetric
Altmetric