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Experimental and DFT studies on corrosion protection performance of epoxy/graphene quantum dots@TiO2 nanotubes coatings
Ji, Xiaohong1,2,3; Seif, Abdolvahab4; Duan, Jizhou1,2,3; Rashidi, Alimorad4; Zhou, Ziyang1,2,3; Pourhashem, Sepideh1,2,3; Mirzaee, Majid5; Zhai, Xiaofan1,2,3; Zhao, Xia1,2,3; Hou, Baorong1,2,3
2022-03-07
Source PublicationCONSTRUCTION AND BUILDING MATERIALS
ISSN0950-0618
Volume322Pages:13
Corresponding AuthorDuan, Jizhou(duanjz@qdio.ac.cn) ; Rashidi, Alimorad(rashidiam@ripi.ir)
AbstractIn this paper, the nanohybrids of graphene quantum dots and TiO2 nanotubes (GQD@TNT) with different GQD: TNT weight ratios of 1:0.5, 1:1, and 1:2 are synthesized which are abbreviated as H (1:0.5), H (1:1), and H (1:2), respectively, and further modified with 3-(aminopropyl) triethoxysilane. Then, the silane-modified nanohybrids are loaded at 0.3 wt% in the solvent-borne epoxy matrix to achieve anti-corrosion nanocomposite coatings on the steel substrates. The results reveal that the coatings loaded with silane-modified H (1:1) more effectively enhance the corrosion protection efficiency of the polymer coatings, which has a low-frequency impedance modulus of 5.64 x 10(9) Omega.cm(2) even after 90 days of immersion in the 3.5 wt% NaCl solution. Moreover, the density functional theory (DFT) method is performed to explore the energetics and the interaction mechanisms at each interface. The results imply that the strong adhesions observed at each interface would twist and increase the diffusion path of the corrosive agents, and consequently, retard the electrochemical corrosion reactions at the surface of the metal. Therefore, the proposed strategies could be successfully applied for the development of long-term anti-corrosion coatings.
KeywordGQD@TNT nanohybrids Silane modification Long-term corrosion resistance Epoxy coating DFT study
DOI10.1016/j.conbuildmat.2022.126501
Indexed BySCI
Language英语
Funding ProjectCAS-VPST Silk Road Science Fund[133137KYSB20200034] ; INSF[99010368] ; Key Research Program of Frontier Sciences, CAS[ZDBS-LY-DQC025] ; National Natural Science Foundation of China[42106042] ; China Postdoctoral Science Fund[2021M693206] ; Applied Basic Research Programs of Qingdao[E1KY12106N]
WOS Research AreaConstruction & Building Technology ; Engineering ; Materials Science
WOS SubjectConstruction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS IDWOS:000750953800003
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/177958
Collection海洋环境腐蚀与生物污损重点实验室
Corresponding AuthorDuan, Jizhou; Rashidi, Alimorad
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
2.Pilot Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
4.Res Inst Petr Ind RIPI, Nanotechnol Res Ctr, West Entrance Blvd,POB 14857-33111, Tehran, Iran
5.Niroo Res Inst, Nonmetall Mat Res Grp, POB 14665517, Tehran, Iran
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Ji, Xiaohong,Seif, Abdolvahab,Duan, Jizhou,et al. Experimental and DFT studies on corrosion protection performance of epoxy/graphene quantum dots@TiO2 nanotubes coatings[J]. CONSTRUCTION AND BUILDING MATERIALS,2022,322:13.
APA Ji, Xiaohong.,Seif, Abdolvahab.,Duan, Jizhou.,Rashidi, Alimorad.,Zhou, Ziyang.,...&Hou, Baorong.(2022).Experimental and DFT studies on corrosion protection performance of epoxy/graphene quantum dots@TiO2 nanotubes coatings.CONSTRUCTION AND BUILDING MATERIALS,322,13.
MLA Ji, Xiaohong,et al."Experimental and DFT studies on corrosion protection performance of epoxy/graphene quantum dots@TiO2 nanotubes coatings".CONSTRUCTION AND BUILDING MATERIALS 322(2022):13.
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