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Synthesis and corrosion protection aspects of poly(o-toluidine)/CdO nanoparticle composite coatings on mild steel

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Abstract

This study examines the possibility of using poly(o-toluidine)/CdO (POT-CdO) nanoparticle composite coating for corrosion protection of mild steel in chloride environment. The POT-CdO nanoparticle composite coating was synthesized on mild steel from aqueous tartrate solution containing CdO-nanoparticles (size ~18 nm) by using cyclic voltammetry. These coatings were characterized by cyclic voltammetry, UV–Visible absorption spectroscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, and X-ray diffraction measurements. The corrosion protection aspects of the resulting POT-CdO nanocomposite structure were investigated in aqueous 3% NaCl solution by potentiodynamic polarization technique and electrochemical impedance spectroscopy. The results of these investigations reveal that the POT-CdO nanoparticle composite acts as a protective coating on mild steel and reduces the corrosion rate of mild steel almost by factor of 70.

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Acknowledgments

The financial support from University Grants Commission (UGC), New Delhi, India, through the major research Project No. F. 30-14/2004(SR) is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Physics, North Maharashtra University, Jalgaon, 425 001, Maharashtra, India

    Sudeshna Chaudhari & P. P. Patil

  2. National Chemical Laboratory, Centre for Materials Characterization, Pashan Road, Pune, 411 008, India

    A. B. Gaikwad

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  1. Sudeshna Chaudhari
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Chaudhari, S., Gaikwad, A.B. & Patil, P.P. Synthesis and corrosion protection aspects of poly(o-toluidine)/CdO nanoparticle composite coatings on mild steel. J Coat Technol Res 7, 119–129 (2010). https://doi.org/10.1007/s11998-008-9160-2

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