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

	One-pot synthesis of NiAl-CO3 LDH anti-corrosion coatings from CO2-saturated precursors
	Liu, Yi 1,2; Yu, Tongwen 1,3; Cai, Rui 1; Li, Yanshuo 1; Yang, Weishen 1; Caro, Juergen 2
刊名	rsc advances
	2015
卷号	5 期号:37 页码:29552-29557
英文摘要	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 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.
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, multidisciplinary
研究领域[WOS]	chemistry
关键词[WOS]	layered double hydroxide ; chromate conversion coatings ; in-situ crystallization ; corrosion protection ; monolayer films ; anion-exchange ; mg alloy ; aluminum ; growth ; orientation
收录类别	SCI
语种	英语
WOS记录号	WOS:000352091600093
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/146142]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.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
推荐引用方式 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.