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

Lakshmi, RV and Aruna, ST and Sampath, S (2016) Ceria nanoparticles vis-à-vis cerium nitrate as corrosion inhibitors for silica-alumina hybrid sol-gel coating. Applied Surface Science, 393. pp. 397-404. ISSN 0169-4332

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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.

Item Type:	Article
Additional Information:	Copyright to this article belongs to M/s. Elsevier science BV
Uncontrolled Keywords:	Sol-gel;Corrosion;EIS;Ceria nanoparticles;XPS;Scanning Kelvin probe
Subjects:	AERONAUTICS > Aeronautics (General) CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
Depositing User:	Ms. Alphones Mary
Date Deposited:	17 Jan 2017 05:49
Last Modified:	17 Jan 2017 05:49
URI:	http://nal-ir.nal.res.in/id/eprint/12527

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