TY - JOUR
T1 - Characterization of polyaniline-polypyrrole composite coatings on low carbon steel
T2 - A XPS and infrared spectroscopy study
AU - Rajagopalan, Ramakrishnan
AU - Iroh, Jude O.
N1 - Funding Information:
We would like to express my sincere thanks to National Science Foundation for funding this ongoing research. We would also like to acknowledge Dr. F.J. Boerio, professor at University of Cincinnati, for letting us use his XPS facility. Our thanks to Dr. Gillian Ross and Jennifer Chase for helping in doing the XPS measurements.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2003/9/30
Y1 - 2003/9/30
N2 - Polyaniline-polypyrrole composite coatings were electrochemically synthesized on low carbon steel under aqueous conditions. The coatings were characterized using X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy. The structure of the coatings was analyzed as a function of electrochemical deposition parameters (molar feed ratio of monomers and reaction time). The infrared spectroscopic analysis showed that a passive layer of iron(II) oxalate is formed at short reaction times. This inorganic layer undergoes dissolution thereby allowing the polymeric coatings to be formed on steel substrates. The infrared spectroscopy also showed significant changes in the chemical structure of the composite coatings when compared with the homopolymeric coatings. X-ray photoelectron spectroscopy was used to study the chemical composition of the coatings and also the amount of dopants (oxalate ions) incorporated into the polymeric coatings.
AB - Polyaniline-polypyrrole composite coatings were electrochemically synthesized on low carbon steel under aqueous conditions. The coatings were characterized using X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy. The structure of the coatings was analyzed as a function of electrochemical deposition parameters (molar feed ratio of monomers and reaction time). The infrared spectroscopic analysis showed that a passive layer of iron(II) oxalate is formed at short reaction times. This inorganic layer undergoes dissolution thereby allowing the polymeric coatings to be formed on steel substrates. The infrared spectroscopy also showed significant changes in the chemical structure of the composite coatings when compared with the homopolymeric coatings. X-ray photoelectron spectroscopy was used to study the chemical composition of the coatings and also the amount of dopants (oxalate ions) incorporated into the polymeric coatings.
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U2 - 10.1016/S0169-4332(03)00579-8
DO - 10.1016/S0169-4332(03)00579-8
M3 - Article
AN - SCOPUS:0041692942
SN - 0169-4332
VL - 218
SP - 58
EP - 69
JO - Applied Surface Science
JF - Applied Surface Science
IS - 1-4
ER -