A new and effective macrocyclic compound as corrosion inhibitor for mild steel in hydrochloric acid solution

dc.contributor.author	Quraishi M.A.; Ansari K.R.; Ebenso E.E.
dc.date.accessioned	2025-05-24T09:15:17Z
dc.description.abstract	The inhibition characteristics of a macrocylic compound namely 1, 2, 4, 7, 9, 10-hexaazacyclo-pentadeca-10, 15-dien-3, 5, 6, 8-tetraone (HPTT) has been investigated on acid corrosion of mild steel in 1 M HCl using gravimetric measurement, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization. The maximum inhibition efficiency (η %) 95.2% of HPTT was obtained at 200 mgL-1. Polarization curves indicate that HPTT acts as a mixed type inhibitor. The adsorption of inhibitor on mild steel surface followed Langmuir isotherm. Thermodynamic adsorption parameters such as adsorption heat (ΔH°ads), adsorption entropy (ΔS°ads) and adsorption free energy (ΔG°ads) have been calculated and discussed.©2012 by ESG.
dc.identifier.doi	https://doi.org/10.1016/s1452-3981(23)16611-9
dc.identifier.uri	http://172.23.0.11:4000/handle/123456789/13674
dc.relation.ispartofseries	International Journal of Electrochemical Science
dc.title	A new and effective macrocyclic compound as corrosion inhibitor for mild steel in hydrochloric acid solution

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