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Experimental and theoretical insights on long-term corrosion protection performance of MXene Nanosheets decorated with graphene quantum dots in epoxy coatings

文献类型：期刊论文

作者Ji, Xiaohong5,6,7; Seif, Abdolvahab1,4; Yuqing, Zhu6; Pourhashem, Sepideh5,6,7; Duan, Jizhou5,6,7; Rashidi, Alimorad2,3; Hou, Baorong5,6,7
刊名REACTIVE & FUNCTIONAL POLYMERS
出版日期2024-06-01
卷号199页码:14
关键词MXene nanosheets Graphene quantum dots Amino-silane Anti-corrosion epoxies Density functional theory
ISSN号1381-5148
DOI10.1016/j.reactfunctpolym.2024.105904
通讯作者Duan, Jizhou(duanjz@qdio.ac.cn) ; Rashidi, Alimorad(rashidiam@ripi.ir)
英文摘要In this study, MXene nanosheets decorated with zero-dimensional graphene quantum dots and functionalized with 3-aminopropyltriethoxysilane (APTES-MXene@GQDs) are used as a nanofiller in epoxy coatings. The MXene@GQDs and APTES-MXene@GQDs are characterized by X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The results prove that the GQDs with spherical size (<= 10 nm) have covered the MXene nanosheets through creating C-O-Ti covalent bonds. The Si-O-C and Ti-O-Si bonds in the APTES-MXene@GQDs indicate that both MXene and GQDs have reacted with the APTES molecules. The results of electrochemical impedance spectroscopy reveal that the low-frequency impedance modulus of epoxy coatings loaded with 0.1 wt% APTES-MXene@GQDs is 4.4 x 109 and 6.4 x 108 Omega.cm2 after 1 day and 7 weeks of immersion in NaCl solution, respectively. Meanwhile, hydrophobic coatings with high adhesion strength are achieved by adding the modified nanofillers. Density Functional Theory calculations emphasize the potential of MXene@GQDs nanohybrids in corrosion protection. The COO covalent bond significantly bolsters stability, making it a strong contender. An efficient electron transfer, as revealed in charge transfer dynamics, reinforces the interactions. The presence of MXene reshapes the electronic landscape, facilitating robust charge transfer processes. Conversely, the systems lacking MXene exhibit less advantageous energy level placement.
WOS关键词NANOCOMPOSITE COATINGS ; MECHANICAL-PROPERTIES ; OXIDE ; COMPOSITES ; ANTICORROSION ; RESISTANCE ; GRAPHITE ; EMISSION
资助项目Ministry of Science and Technology Program for Young Foreign Talents[QN2022055002L] ; Shandong Provincial Department of Transportation Science and Technology Plan Project[2023B85-03] ; CAS-VPST Silk Road Science Fund 2021 ; INSF's Project[2023CXPT008] ; Key Research and Development Program of Shandong Province[133137KYSB20200034] ; [99010368]
WOS研究方向Chemistry ; Engineering ; Polymer Science
语种英语
WOS记录号WOS:001229756900001
出版者ELSEVIER
源URL[http://ir.qdio.ac.cn/handle/337002/185889]  
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.Univ Turin, NIS INSTM, Via Pietro Giuria 7, I-10125 Turin, Italy
2.Padova Univ, Dipartimento Fis & Astron G Galilei, Via Marzolo 8, I-35131 Padua, Italy
3.Res Inst Petr Ind RIPI, Nanotechnol Res Ctr, West Entrance Blvd,POB 14857-33111, Tehran, Iran
4.Univ Turin, Dept Chem, NIS INSTM, Via Pietro Giuria 7, I-10125 Turin, Italy
5.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
6.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China
7.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Ji, Xiaohong,Seif, Abdolvahab,Yuqing, Zhu,et al. Experimental and theoretical insights on long-term corrosion protection performance of MXene Nanosheets decorated with graphene quantum dots in epoxy coatings[J]. REACTIVE & FUNCTIONAL POLYMERS,2024,199:14.
APA Ji, Xiaohong.,Seif, Abdolvahab.,Yuqing, Zhu.,Pourhashem, Sepideh.,Duan, Jizhou.,...&Hou, Baorong.(2024).Experimental and theoretical insights on long-term corrosion protection performance of MXene Nanosheets decorated with graphene quantum dots in epoxy coatings.REACTIVE & FUNCTIONAL POLYMERS,199,14.
MLA Ji, Xiaohong,et al."Experimental and theoretical insights on long-term corrosion protection performance of MXene Nanosheets decorated with graphene quantum dots in epoxy coatings".REACTIVE & FUNCTIONAL POLYMERS 199(2024):14.

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来源：海洋研究所

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