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

J. O. Iroh; R. Rajagopalan

doi:10.1179/026708400101517314

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

J. O. Iroh, R. Rajagopalan

Engineering Science and Mechanics

Research output: Contribution to journal › Article › peer-review

12 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 language	English (US)
Pages (from-to)	321-326
Number of pages	6
Journal	Surface Engineering
Volume	16
Issue number	4
DOIs	https://doi.org/10.1179/026708400101517314
State	Published - Jan 1 2000

All Science Journal Classification (ASJC) codes

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

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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.",

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AU - Rajagopalan, R.

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N2 - 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.

AB - 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.

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EP - 326

JO - Surface Engineering

JF - Surface Engineering

IS - 4

ER -

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

Abstract

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