Characterization of conducting composite coatings formed on steel by aqueous electrochemical process

J. O. Iroh, R. Rajagopalan

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Polyaniline/polypyrrole composite coatings on low carbon steel were deposited by a potentiostatic method, using oxalic acid as the electrolyte. The applied potential and feed ratio of monomers (aniline and pyrrole) were varied, and the reactions were performed under aqueous conditions. It was found that a passive layer of iron (II) oxalate is formed before coating formation begins. Coatings were characterized using infrared spectroscopy, and the formation of composites was confirmed by the presence of polyaniline and polypyrrole peaks. Formation of composites was further corroborated by comparison of voltammograms from composites and homopolymers and by scanning electron microscopy.

Original languageEnglish (US)
Pages (from-to)321-326
Number of pages6
JournalSurface Engineering
Volume16
Issue number4
DOIs
StatePublished - Jan 1 2000

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Characterization of conducting composite coatings formed on steel by aqueous electrochemical process'. Together they form a unique fingerprint.

Cite this