Carbonate-Free Zn-Al (1:1) Layered Double Hydroxide Film Directly Grown on Zinc-Aluminum Alloy Coating

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abstract

Zn-Al layered double hydroxide (LDH) film has been directly grown on aluminum-zinc alloy coating at the conditions of either absence or presence of carbonate anions. Based on the comparative analysis of chemical composition and crystal structure parameters of the obtained LDH phase, arrangements of the intercalated species in the interlayer were modeled. It was found that the LDH phase formed on Zn-Al alloy coating in different solutions is characterized by the cations ratio Zn/Al similar to 1 and intercalated with OH- anion (and not with CO32-). The likely formation mechanism of such an LDH phase with low anion exchangeability is proposed. (C) 2013 The Electrochemical Society. All rights reserved.

keywords

DIFFRACTION; BEHAVIOR

subject category

Electrochemistry; Materials Science

authors

Salak, AN; Lisenkov, AD; Zheludkevich, ML; Ferreira, MGS

our authors

no photo

Aleksey Lisenkov

Junior Researcher
foto Andrei Salak

Andrei Salak

Principal Researcher
foto Mário Guerreiro Silva Ferreira

Mário Guerreiro Silva Ferreira

Retired Professor
foto Mikhail Zheludkevich

Mikhail Zheludkevich

Invited Principal Researcher

Groups

G3 - Electrochemical Materials, Interfaces and Coatings

Projects

Modeling of atmospheric corrosion of steel protected by aluminium based alloys applied by hot dip processing - AtCorAS (AtCorAS)

Corrosion adn corrosion protection in multi-material systems (PTDC/CTM/108446/2008)

RMNE-UA-National Network of Electron Microscopy (REDE/1509/RME/2005 )

acknowledgements

The authors thank Dr. S. V. Lamaka for useful discussion. This work was supported by the projects RFSR-CT-2011-00015 (ATCO-RAS), PTDC/CTM/108446/2008 and REDE/1509/RME/2005. A. D. L. acknowledges the Foundation for Science and Technology (FCT-Portugal, grant SFRH/BD/78628/2011) for their financial support.

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Publication Details

type
Journal Article
year
2014
journal
ECS ELECTROCHEMISTRY LETTERS
volume
3
publisher
ELECTROCHEMICAL SOC INC
issn
2162-8726
issue
1
digital object identifier
10.1149/2.008401eel
web of science article identifier
WOS:000327761200007

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