Epoxy coating containing CoMOF@MBT metal-organic framework for active protection of aluminum alloy

doi:10.1016/j.surfcoat.2023.130349

IMR OpenIR

	Epoxy coating containing CoMOF@MBT metal-organic framework for active protection of aluminum alloy
	Nwokolo, Izuchukwu K.1,2; Shi, Hongwei 1,2,3; Ikeuba, Alexander I.4; Liu, Fuchun 1,2,5; Ahmed, Sharjeel 1,2; Zhang, Wanyu 1,2
通讯作者	Shi, Hongwei(hwshi@imr.ac.cn) ; Liu, Fuchun(fcliu@imr.ac.cn)
	2024-02-15
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	477 页码:17
摘要	A new cobalt-based metal-organic framework (CoMOF) was synthesized and subjected to comprehensive characterization employing a range of established techniques including X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and thermal analyses. CoMOF was functionalized by loading mercaptobenzothiazole (MBT) onto CoMOF to fabricate CoMOF@MBT with anticorrosion properties. Polarization and immersion tests were employed to estimate the corrosion inhibition ability of CoMOF@MBT in NaCl medium. The results show that it inhibits corrosion of AA2024-T3 aluminum alloy when it is submerged in a NaCl solution with a pH of 3, yielding an inhibition efficiency of 87 %. Protective anticorrosion coatings were prepared by incorporating CoMOF@MBT particles into epoxy resin and coated on AA 2024-T3 substrate. Corrosion resistance of the protective coatings was assessed through the utilization of EIS and salt spray tests and the results show that scratched panels with coating containing CoMOF@MBT exhibit a slow decline in Rct values. It shows an Rct value of 1.45 x 104 omega cm2 after 48 h of immersion in NaCl medium. The results demonstrated that incorporating CoMOF@MBT improves the capacity of epoxy coatings to withstand corrosion of AA2024-T3 panels in NaCl through the smart release of MBT molecules upon exposure to corrosive agents.
关键词	Aluminum alloy Corrosion resistance Electrochemical impedance spectroscopy Mercaptobenzothiazole Metal-organic framework Protective coatings
资助者	National Natural Science Foundation of China ; Key Project of Basic Research Projects of Liaoning Provincial Department of Education ; LingChuang Research Project of China National Nuclear Corporation
DOI	10.1016/j.surfcoat.2023.130349
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52171089] ; National Natural Science Foundation of China[51571202] ; Key Project of Basic Research Projects of Liaoning Provincial Department of Education[JYTZD2023114] ; LingChuang Research Project of China National Nuclear Corporation[E041F212Z1]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:001164124500001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/184394
专题	中国科学院金属研究所
通讯作者	Shi, Hongwei; Liu, Fuchun
作者单位	1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China 4.Univ Calabar, Dept Pure & Appl Chem, Mat Chem Res Grp, PMB 1115, Calabar, Nigeria 5.Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China
推荐引用方式 GB/T 7714	Nwokolo, Izuchukwu K.,Shi, Hongwei,Ikeuba, Alexander I.,et al. Epoxy coating containing CoMOF@MBT metal-organic framework for active protection of aluminum alloy[J]. SURFACE & COATINGS TECHNOLOGY,2024,477:17.
APA	Nwokolo, Izuchukwu K.,Shi, Hongwei,Ikeuba, Alexander I.,Liu, Fuchun,Ahmed, Sharjeel,&Zhang, Wanyu.(2024).Epoxy coating containing CoMOF@MBT metal-organic framework for active protection of aluminum alloy.SURFACE & COATINGS TECHNOLOGY,477,17.
MLA	Nwokolo, Izuchukwu K.,et al."Epoxy coating containing CoMOF@MBT metal-organic framework for active protection of aluminum alloy".SURFACE & COATINGS TECHNOLOGY 477(2024):17.