Active protective Al-Ce alloy coating electrodeposited from ionic liquid

authors	Lisenkov, A; Zheludkevich, ML; Ferreira, MGS
nationality	International
journal	ELECTROCHEMISTRY COMMUNICATIONS
author keywords	Ionic liquid; Electrodeposition; Cerium; Aluminium; Corrosion protection
keywords	ALUMINUM; CORROSION; CHLORIDE; METALS; CERIUM
abstract	The electrochemical co-deposition of Al-Ce metallic protective coating with active inhibiting effect was performed for the first time using an ionic liquid as an electrolyte. Cerium was successfully co-deposited with aluminium on surface of Pt and AA2024 aluminium alloy forming uniform films with globular micro-structure and thickness up to 75 mu m. Cerium was introduced into the aluminium coating as a potential corrosion inhibitor which can be liberated during sacrificial dissolution of the galvanic layer deposited on the alloy surface. The released inhibitor provides an additional active corrosion protection slowing down the corrosion processes in the defects. (C) 2010 Elsevier B.V. All rights reserved.
publisher	ELSEVIER SCIENCE INC
issn	1388-2481
year published	2010
volume	12
issue	6
beginning page	729
ending page	732
digital object identifier (doi)	10.1016/j.elecom.2010.03.018
web of science category	Electrochemistry
subject category	Electrochemistry
unique article identifier	WOS:000279215700004