DICP OpenIR
One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors
Liu, Yi1,2; Yu, Tongwen1,3; Cai, Rui1; Li, Yanshuo1; Yang, Weishen1; Caro, Juergen2
Source PublicationRSC ADVANCES
2015
DOI10.1039/c5ra01969a
Volume5Issue:37Pages:29552-29557
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordLAYERED DOUBLE HYDROXIDE ; CHROMATE CONVERSION COATINGS ; IN-SITU CRYSTALLIZATION ; CORROSION PROTECTION ; MONOLAYER FILMS ; ANION-EXCHANGE ; MG ALLOY ; ALUMINUM ; GROWTH ; ORIENTATION
AbstractAnti-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 mm-thick LDH coatings, while preferentially c-oriented LDH coatings with an average thickness of 12 mm 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.
Language英语
WOS IDWOS:000352091600093
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146142
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Leibniz Univ Hannover, Inst Phys Chem & Electrochem, D-30167 Hannover, Germany
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liu, Yi,Yu, Tongwen,Cai, Rui,et al. One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors[J]. RSC ADVANCES,2015,5(37):29552-29557.
APA Liu, Yi,Yu, Tongwen,Cai, Rui,Li, Yanshuo,Yang, Weishen,&Caro, Juergen.(2015).One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors.RSC ADVANCES,5(37),29552-29557.
MLA Liu, Yi,et al."One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors".RSC ADVANCES 5.37(2015):29552-29557.
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