Cerium molybdate nanowires for active corrosion protection of aluminium alloys

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abstract

In this paper the inhibitive performance of cerium molybdate nanowires prepared by a novel methodology is reported. The methodology is based on a low-temperature, controlled-rate mixing process. Structurally, cerium molybdate nanowires were found to be amorphous-like materials whose inhibiting action towards aluminium alloy 2024-T3 was demonstrated by DC polarization and electrochemical impedance spectroscopy (EIS), corroborated by microstructural surface analysis of the metallic substrate. The observed inhibiting action is attributed to the higher solubility of the cerium molybdate nanomaterials with respect to crystalline sodium cerium molybdate obtained at room temperature. (C) 2012 Elsevier Ltd. All rights reserved.

keywords

AA2024-T3; INHIBITION; COATINGS; SPECTROSCOPY; PHOSPHATE; CHROMATE; PIGMENTS; COBALT

subject category

Materials Science; Metallurgy & Metallurgical Engineering

authors

Yasakau, KA; Tedim, J; Zheludkevich, ML; Drumm, R; Shem, M; Wittmar, M; Veith, M; Ferreira, MGS

our authors

foto João Tedim

João Tedim

Assistant Professor
foto Kiryl Yasakau

Kiryl Yasakau

Auxiliary Researcher
foto Mário Guerreiro Silva Ferreira

Mário Guerreiro Silva Ferreira

Full professor
foto Mikhail Zheludkevich

Mikhail Zheludkevich

Invited Principal Researcher

Groups

3 - Carbon Materials, Composites and Functional Coatings

Projects

Self-healing protective coating with "intelligent" nanoreservoirs of corrosion inhibitors (PTDC/CTM/65632/2006)
MULTIPROTECT - Advanced Environmentally Friendly Multifunctional Corrosion Protection by Nanotechnology (MULTIPROTECT)

acknowledgements

J.T. thanks FCT for Post-Doctoral grant (ref. SFRH/BPD/64335/2009). The authors acknowledge Aleksey Lisenkov for the SEM/EDS mapping analysis and Dr. Andrei N. Salak for XRD measurements. MULTIPROTECT (ref. NMP3-CT-2005-011783) and FCT (ref. PTDC/CTM/65632/2006) projects are acknowledged as well for financial support.

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Publication Details

type
Journal Article
year
2012
journal
CORROSION SCIENCE
volume
58
publisher
PERGAMON-ELSEVIER SCIENCE LTD
issn
0010-938X
digital object identifier
10.1016/j.corsci.2012.01.012
web of science article identifier
WOS:000302980100005

Journal Metrics (JCR 2019)

Journal Impact Factor
6.479
Journal Impact Factor (5 yrs)
6.894
category normalized journal percentile
89.262

Citations

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