Influence of preparation conditions of Layered Double Hydroxide conversion films on corrosion protection
authors Tedim, J; Zheludkevich, ML; Bastos, AC; Salak, AN; Lisenkov, AD; Ferreira, MGS
nationality International
journal ELECTROCHIMICA ACTA
author keywords LDH conversion films; Corrosion; Active Protection; EIS
keywords ALUMINUM-ALLOY; MG ALLOY; COATINGS; INHIBITION; RESISTANCE; CHITOSAN; NANOCONTAINERS
abstract In this work, layered double hydroxide (LDH) conversion films were grown on aluminium alloy 2024 substrates. The effect of experimental conditions on the growth of LDH conversion films, including concentration of reactants and presence of corrosion inhibitor, was investigated. The protective performance provided by LDH films was assessed by electrochemical impedance spectroscopy (EIS), and rationalised in terms of structural and morphological characteristics surveyed by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The results show that corrosion protection increases when corrosion inhibitors (vanadates) are intercalated in LDHs and dilute solutions of Zn2+ are used to grow LDHs, (C) 2013 Elsevier Ltd. All rights reserved.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn 0013-4686
year published 2014
volume 117
beginning page 164
ending page 171
digital object identifier (doi) 10.1016/j.electacta.2013.11.111
web of science category Electrochemistry
subject category Electrochemistry
unique article identifier WOS:000332812300024

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