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Ceria nanoparticles vis-a-vis cerium nitrate as corrosion inhibitors for silica-alumina hybrid sol-gel coating

Lakshmi, R and Aruna, ST and Sampath, S (2017) Ceria nanoparticles vis-a-vis cerium nitrate as corrosion inhibitors for silica-alumina hybrid sol-gel coating. In: APPLIED SURFACE SCIENCE, 393 . pp. 397-404.

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Official URL: http://dx.doi.org/10.1016/j.apsusc.2016.10.035

Abstract

The present work provides a comparative study on the corrosion protection efficiency of defect free sol-gel hybrid coating containing ceria nanoparticles and cerium nitrate ions as corrosion inhibitors. Less explored organically modified alumina-silica hybrid sol-gel coatings are synthesized from 3-glycidoxypropyltrimethoxysilane and aluminium-tri-sec-butoxide. The microemulsion derived nanoparticles and the hybrid coatings are characterized and compared with coatings containing cerium nitrate. Corrosion inhibiting capability is assessed using electrochemical impedance spectroscopy. Scanning Kelvin probe measurements are also conducted on the coatings for identifying the apparent corrosion prone regions. Detailed X-ray photoelectron spectroscopy (XPS) analysis is carried out to comprehend the bonding and corrosion protection rendered by the hybrid coatings. (C) 2016 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Department/Centre: Division of Chemical Sciences > Inorganic & Physical Chemistry
Depositing User: Id for Latest eprints
Date Deposited: 04 Jan 2017 04:42
Last Modified: 04 Jan 2017 04:42
URI: http://eprints.iisc.ac.in/id/eprint/55697

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