Influence of embedded ZnAlCe-NO3- layered double hydroxides on the anticorrosion properties of sol-gel coatings for aluminum alloy

Jianhua Liu; You Zhang; Mei Yu; Songmei Li; Bing Xue; Xiaolin Yin

doi:10.1016/j.porgcoat.2014.12.015

Influence of embedded ZnAlCe-NO₃^- layered double hydroxides on the anticorrosion properties of sol-gel coatings for aluminum alloy

Jianhua Liu^*
, You Zhang
, Mei Yu
, Songmei Li
, Bing Xue
, Xiaolin Yin

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

Research output: Contribution to journal › Article › peer-review

60 Scopus citations

Abstract

A protective coating was designed by dispersing Ce-doped ZnAl layered double hydroxides (ZnAlCe-LDHs) nanoparticles in hybrid sol-gel (SiO_x/ZrO_x) layer on aluminum alloy AA2024. The concentration of cerium in synthesized LDHs was varied to ascertain the optimum condition for anticorrosion performance. The LDH nanoparticles were characterized in terms of structure, morphology and chemical composition. It was found that Ce (III) was inserted into the sheets of LDHs and two mixture phases of LDHs and CeO₂ were formed when the atomic ratio of Ce/(Al + Ce) was higher than 0.05. The sol-gel coating embedded with LDHs (Ce/(Al + Ce) = 0.1) exhibited high corrosion resistance, probably due to the synergistic inhibition of ZnAlCe-LDHs and CeO₂ nanoparticles.

Original language	English
Pages (from-to)	93-100
Number of pages	8
Journal	Progress in Organic Coatings
Volume	81
DOIs	https://doi.org/10.1016/j.porgcoat.2014.12.015
State	Published - 1 Apr 2015

Keywords

AA2024
Cerium
Corrosion protection
Layered double hydroxides
Sol-gel coatings

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10.1016/j.porgcoat.2014.12.015

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title = "Influence of embedded ZnAlCe-NO3- layered double hydroxides on the anticorrosion properties of sol-gel coatings for aluminum alloy",

abstract = "A protective coating was designed by dispersing Ce-doped ZnAl layered double hydroxides (ZnAlCe-LDHs) nanoparticles in hybrid sol-gel (SiOx/ZrOx) layer on aluminum alloy AA2024. The concentration of cerium in synthesized LDHs was varied to ascertain the optimum condition for anticorrosion performance. The LDH nanoparticles were characterized in terms of structure, morphology and chemical composition. It was found that Ce (III) was inserted into the sheets of LDHs and two mixture phases of LDHs and CeO2 were formed when the atomic ratio of Ce/(Al + Ce) was higher than 0.05. The sol-gel coating embedded with LDHs (Ce/(Al + Ce) = 0.1) exhibited high corrosion resistance, probably due to the synergistic inhibition of ZnAlCe-LDHs and CeO2 nanoparticles.",

keywords = "AA2024, Cerium, Corrosion protection, Layered double hydroxides, Sol-gel coatings",

author = "Jianhua Liu and You Zhang and Mei Yu and Songmei Li and Bing Xue and Xiaolin Yin",

year = "2015",

month = apr,

day = "1",

doi = "10.1016/j.porgcoat.2014.12.015",

language = "英语",

volume = "81",

pages = "93--100",

journal = "Progress in Organic Coatings",

issn = "0300-9440",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Influence of embedded ZnAlCe-NO3- layered double hydroxides on the anticorrosion properties of sol-gel coatings for aluminum alloy

AU - Liu, Jianhua

AU - Zhang, You

AU - Yu, Mei

AU - Li, Songmei

AU - Xue, Bing

AU - Yin, Xiaolin

PY - 2015/4/1

Y1 - 2015/4/1

N2 - A protective coating was designed by dispersing Ce-doped ZnAl layered double hydroxides (ZnAlCe-LDHs) nanoparticles in hybrid sol-gel (SiOx/ZrOx) layer on aluminum alloy AA2024. The concentration of cerium in synthesized LDHs was varied to ascertain the optimum condition for anticorrosion performance. The LDH nanoparticles were characterized in terms of structure, morphology and chemical composition. It was found that Ce (III) was inserted into the sheets of LDHs and two mixture phases of LDHs and CeO2 were formed when the atomic ratio of Ce/(Al + Ce) was higher than 0.05. The sol-gel coating embedded with LDHs (Ce/(Al + Ce) = 0.1) exhibited high corrosion resistance, probably due to the synergistic inhibition of ZnAlCe-LDHs and CeO2 nanoparticles.

AB - A protective coating was designed by dispersing Ce-doped ZnAl layered double hydroxides (ZnAlCe-LDHs) nanoparticles in hybrid sol-gel (SiOx/ZrOx) layer on aluminum alloy AA2024. The concentration of cerium in synthesized LDHs was varied to ascertain the optimum condition for anticorrosion performance. The LDH nanoparticles were characterized in terms of structure, morphology and chemical composition. It was found that Ce (III) was inserted into the sheets of LDHs and two mixture phases of LDHs and CeO2 were formed when the atomic ratio of Ce/(Al + Ce) was higher than 0.05. The sol-gel coating embedded with LDHs (Ce/(Al + Ce) = 0.1) exhibited high corrosion resistance, probably due to the synergistic inhibition of ZnAlCe-LDHs and CeO2 nanoparticles.

KW - AA2024

KW - Cerium

KW - Corrosion protection

KW - Layered double hydroxides

KW - Sol-gel coatings

UR - https://www.scopus.com/pages/publications/84922964873

U2 - 10.1016/j.porgcoat.2014.12.015

DO - 10.1016/j.porgcoat.2014.12.015

M3 - 文章

AN - SCOPUS:84922964873

SN - 0300-9440

VL - 81

SP - 93

EP - 100

JO - Progress in Organic Coatings

JF - Progress in Organic Coatings

ER -

Influence of embedded ZnAlCe-NO₃^- layered double hydroxides on the anticorrosion properties of sol-gel coatings for aluminum alloy

Abstract

Keywords

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