Electropolymerization of Polypyrrole on Low-Carbon Steel: A Galvanostatic Approach

Author(s)	Dr. Pritee Mahesh Raotole
Country	India
Abstract	Polypyrrole (PPY) coatings were electrodeposited onto low-carbon steel (LCS) substrates under galvanostatic conditions in an aqueous oxalic acid medium at room temperature, with a constant current density of 0.66 mAcm⁻². The electropolymerization process was monitored by recording potential-time (E-t) curves, while the structural and morphological properties of the resulting coatings were characterized using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM). The E-t profiles revealed an induction period of 140 seconds, after which the polymerization stabilized at a potential of 0.602 V. The characterization results confirmed the successful electrosynthesis of polypyrrole (PPY) coatings, demonstrating well-formed and adherent polymer films on the low-carbon steel substrate.
Keywords	Conducting polymers, Polypyrrole, Galvanostatic Deposition
Field	Engineering
Published In	Volume 7, Issue 6, November-December 2025
Published On	2025-11-12
DOI	https://doi.org/10.36948/ijfmr.2025.v07i06.60031

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