Experimental and DFT studies on corrosion protection performance of epoxy/graphene quantum dots@TiO2 nanotubes coatings
文献类型：期刊论文
| 作者 | 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
|
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2022-03-07 |
| 卷号 | 322页码:13 |
| ISSN号 | 0950-0618 |
| 关键词 | GQD@TNT nanohybrids Silane modification Long-term corrosion resistance Epoxy coating DFT study |
| DOI | 10.1016/j.conbuildmat.2022.126501 |
| 通讯作者 | Duan, Jizhou(duanjz@qdio.ac.cn) ; Rashidi, Alimorad(rashidiam@ripi.ir) |
| 英文摘要 | In 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. |
| 资助项目 | CAS-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研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000750953800003 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/177957]  |
| 专题 | 海洋研究所_海洋腐蚀与防护研究发展中心 |
| 通讯作者 | Duan, Jizhou; Rashidi, Alimorad |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。