One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors

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

Authors

  • Yi Liu
  • Tongwen Yu
  • Rui Cai
  • Yanshuo Li
  • Weishen Yang
  • Jürgen Caro

Research Organisations

External Research Organisations

  • CAS - Dalian Institute of Chemical Physics
  • University of the Chinese Academy of Sciences (UCAS)
View graph of relations

Details

Original languageEnglish
Pages (from-to)29552-29557
Number of pages6
JournalRSC Advances
Volume5
Issue number37
Publication statusPublished - 19 Mar 2015

Abstract

Anti-corrosive coatings based on layered double hydroxides (LDHs) have been considered as promising alternatives to conventional chromate-containing conversion coatings. Among various LDHs, carbonate-intercalated LDH coatings with a c-axis preferred orientation should be the optimum structure for protecting metals against corrosion. Herein we successfully prepared NiAl-CO3 LDH coatings on aluminium plates in one step. Particularly it was found that CO2 dissolved in the precursor solution exerted great influence on the microstructure and anti-corrosion capacity of prepared LDH coatings. Trace amounts of CO2 in the precursor solution led to the formation of ab-oriented 7 μm-thick LDH coatings, while preferentially c-oriented LDH coatings with an average thickness of 12 μm were formed from CO2-saturated precursor solutions. A DC polarization test demonstrated that preferentially c-oriented LDH coatings exhibited much higher anti-corrosion performance than ab-oriented LDH coatings possibly due to the decreased density of mesoscopic defects. Simultaneously, CO2, the green gas, was also positively utilized.

ASJC Scopus subject areas

Cite this

One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors. / Liu, Yi; Yu, Tongwen; Cai, Rui et al.
In: RSC Advances, Vol. 5, No. 37, 19.03.2015, p. 29552-29557.

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

Liu, Y, Yu, T, Cai, R, Li, Y, Yang, W & Caro, J 2015, 'One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors', RSC Advances, vol. 5, no. 37, pp. 29552-29557. https://doi.org/10.1039/c5ra01969a
Liu, Y., Yu, T., Cai, R., Li, Y., Yang, W., & Caro, J. (2015). One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors. RSC Advances, 5(37), 29552-29557. https://doi.org/10.1039/c5ra01969a
Liu Y, Yu T, Cai R, Li Y, Yang W, Caro J. One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors. RSC Advances. 2015 Mar 19;5(37):29552-29557. doi: 10.1039/c5ra01969a
Liu, Yi ; Yu, Tongwen ; Cai, Rui et al. / One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors. In: RSC Advances. 2015 ; Vol. 5, No. 37. pp. 29552-29557.
Download
@article{e7696d4a3db545219289cc25336732e6,
title = "One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors",
abstract = "Anti-corrosive coatings based on layered double hydroxides (LDHs) have been considered as promising alternatives to conventional chromate-containing conversion coatings. Among various LDHs, carbonate-intercalated LDH coatings with a c-axis preferred orientation should be the optimum structure for protecting metals against corrosion. Herein we successfully prepared NiAl-CO3 LDH coatings on aluminium plates in one step. Particularly it was found that CO2 dissolved in the precursor solution exerted great influence on the microstructure and anti-corrosion capacity of prepared LDH coatings. Trace amounts of CO2 in the precursor solution led to the formation of ab-oriented 7 μm-thick LDH coatings, while preferentially c-oriented LDH coatings with an average thickness of 12 μm were formed from CO2-saturated precursor solutions. A DC polarization test demonstrated that preferentially c-oriented LDH coatings exhibited much higher anti-corrosion performance than ab-oriented LDH coatings possibly due to the decreased density of mesoscopic defects. Simultaneously, CO2, the green gas, was also positively utilized.",
author = "Yi Liu and Tongwen Yu and Rui Cai and Yanshuo Li and Weishen Yang and J{\"u}rgen Caro",
year = "2015",
month = mar,
day = "19",
doi = "10.1039/c5ra01969a",
language = "English",
volume = "5",
pages = "29552--29557",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",
number = "37",

}

Download

TY - JOUR

T1 - One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors

AU - Liu, Yi

AU - Yu, Tongwen

AU - Cai, Rui

AU - Li, Yanshuo

AU - Yang, Weishen

AU - Caro, Jürgen

PY - 2015/3/19

Y1 - 2015/3/19

N2 - Anti-corrosive coatings based on layered double hydroxides (LDHs) have been considered as promising alternatives to conventional chromate-containing conversion coatings. Among various LDHs, carbonate-intercalated LDH coatings with a c-axis preferred orientation should be the optimum structure for protecting metals against corrosion. Herein we successfully prepared NiAl-CO3 LDH coatings on aluminium plates in one step. Particularly it was found that CO2 dissolved in the precursor solution exerted great influence on the microstructure and anti-corrosion capacity of prepared LDH coatings. Trace amounts of CO2 in the precursor solution led to the formation of ab-oriented 7 μm-thick LDH coatings, while preferentially c-oriented LDH coatings with an average thickness of 12 μm were formed from CO2-saturated precursor solutions. A DC polarization test demonstrated that preferentially c-oriented LDH coatings exhibited much higher anti-corrosion performance than ab-oriented LDH coatings possibly due to the decreased density of mesoscopic defects. Simultaneously, CO2, the green gas, was also positively utilized.

AB - Anti-corrosive coatings based on layered double hydroxides (LDHs) have been considered as promising alternatives to conventional chromate-containing conversion coatings. Among various LDHs, carbonate-intercalated LDH coatings with a c-axis preferred orientation should be the optimum structure for protecting metals against corrosion. Herein we successfully prepared NiAl-CO3 LDH coatings on aluminium plates in one step. Particularly it was found that CO2 dissolved in the precursor solution exerted great influence on the microstructure and anti-corrosion capacity of prepared LDH coatings. Trace amounts of CO2 in the precursor solution led to the formation of ab-oriented 7 μm-thick LDH coatings, while preferentially c-oriented LDH coatings with an average thickness of 12 μm were formed from CO2-saturated precursor solutions. A DC polarization test demonstrated that preferentially c-oriented LDH coatings exhibited much higher anti-corrosion performance than ab-oriented LDH coatings possibly due to the decreased density of mesoscopic defects. Simultaneously, CO2, the green gas, was also positively utilized.

UR - http://www.scopus.com/inward/record.url?scp=84926358421&partnerID=8YFLogxK

U2 - 10.1039/c5ra01969a

DO - 10.1039/c5ra01969a

M3 - Article

AN - SCOPUS:84926358421

VL - 5

SP - 29552

EP - 29557

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 37

ER -