Enhancement of Active Corrosion Protection via Combination of Inhibitor-Loaded Nanocontainers
authors Tedim, J; Poznyak, SK; Kuznetsova, A; Raps, D; Hack, T; Zheludkevich, ML; Ferreira, MGS
nationality International
journal ACS APPLIED MATERIALS & INTERFACES
author keywords nanocontainer; coating; corrosion; inhibitor; self-healing; AA2024
keywords LAYERED DOUBLE HYDROXIDES; ANTICORROSION COATINGS; FILIFORM CORROSION; ORGANIC COATINGS; PLANT-SURFACES; MILD-STEEL; AA2024-T3; PIGMENTS; RELEASE; PHOSPHATE
abstract The present work reports the synthesis of layered double hydroxides (LDHs) nanocontainers loaded with different corrosion inhibitors (vanadate, phosphate, and 2-mercaptobenzothiazolate) and the characterization of the resulting pigments by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The anticorrosion activity of these nanocontainers with respect to aluminum alloy AA2024 was investigated by electrochemical impedance spectroscopy (EIS). The bare metallic substrates were immersed in dispersions of nanocontainers in sodium chloride solution and tested to understand the inhibition mechanisms and efficiency. The nanocontainers were also incorporated into commercial coatings used for aeronautical applications to study the active corrosion protection properties in systems of industrial relevance. The results show that an enhancement of the active protection effect can be reached when nanocontainers loaded with different inhibitors are combined in the same protective coating system.
publisher AMER CHEMICAL SOC
issn 1944-8244
year published 2010
volume 2
issue 5
beginning page 1528
ending page 1535
digital object identifier (doi) 10.1021/am100174t
web of science category Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
subject category Science & Technology - Other Topics; Materials Science
unique article identifier WOS:000277977400037
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journal analysis (jcr 2017):
journal impact factor 8.097
5 year journal impact factor 8.284
category normalized journal impact factor percentile 87.646
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