alexa Electrochemical and computational aspects of surface interaction and corrosion inhibition of mildsteel in hydrochloricacid by Phyllanthus amarusleafextract (PAE).


Journal of Steel Structures & Construction

Author(s): Anupama KK Ramya K Joseph A

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Phyllanthus amarus leaf extract (PAE) has been investigated as a corrosion inhibitor for mild steel in 1M hydrochloric acid. Electrochemical impedance spectroscopy and potentiodynamic polarization technique were used to monitor the inhibition behaviour of PAE for the system under investigation at different exposure time (1h, 2h) and temperatures (303K, 308K and 313K). The inhibition capacity of PAE was observed to be increasing with increasing concentration. As the extract components got adsorbed on the metal surface, inhibition efficiency also increases and finally reached 95% at 303K. The rise in temperature affected the inhibition efficiency adversely. Weight loss studies carried out at different exposure time also revealed the inhibition efficiency of PAE. To understand the contribution of the major component in the inhibition potential of the extract computational calculations corresponding...

This article was published in Journal of MolecularLiquids and referenced in Journal of Steel Structures & Construction

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