Title:	Experimental and theoretical studies of hexylmeythylimidazolium tetrafluoroborate ionic liquid as cathodic corrosion inhibitor for mild steel
Authors:	Kumar, Pankaj Soni, Isha Jayaprakash, Gururaj Kudur Kumar, Sandeep Rao, Srilatha Flores-Moreno, Roberto Sowmyashree, A.S.
Keywords:	Ionic liquid Electrochemical studies Corrosion inhibition Mild steel (MS)
Issue Date:	1-Dec-2022
Publisher:	Elsevier
Citation:	Inorganic Chemistry Communications, 2022, Vol. 146, p110110
Abstract:	Ionic liquids (ILs) are principally investigated for their utilization and applications in electrochemistry and their prospective approach to corrosion prevention has attracted a lot of attention. This article explains the synthesis and utility of a room temperature imidazole-based ionic liquid namely 1-hexyl-3-methylimidazolium tetrafluoroborate (HMIM.BF4) as an inhibitor of corrosion on the mild steel surface. The HMIM.BF4 showed the cathodic type of steel corrosion inhibition with both chemisorption and physisorption nature obeying Langmuir and Temkin adsorption isotherms. At concentrations greater than 100 ppm, the inhibition efficiency of HMIM.BF4 increases and was found to be 96.27% at 300 ppm. Quantum chemical studies (frontier molecular orbitals and analytical Fukui) have been used to locate the redox-active sites on the inhibitor.
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/8023
ISSN:	1387-7003
Alternative Location:	https://doi.org/10.1016/j.inoche.2022.110110
Copyright:	2022 Elsevier B.V.
Appears in Collections:	Research Papers (SCM)

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