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

doi:10.1016/j.reactfunctpolym.2024.105904

	Experimental and theoretical insights on long-term corrosion protection performance of MXene Nanosheets decorated with graphene quantum dots in epoxy coatings
	Ji, Xiaohong 1,2,3; Seif, Abdolvahab 5,6; Yuqing, Zhu 2; Pourhashem, Sepideh 1,2,3; Duan, Jizhou 1,2,3; Rashidi, Alimorad 4,7; Hou, Baorong 1,2,3
	2024-06-01
发表期刊	REACTIVE & FUNCTIONAL POLYMERS
ISSN	1381-5148
卷号	199 页码:14
通讯作者	Duan, Jizhou(duanjz@qdio.ac.cn) ; Rashidi, Alimorad(rashidiam@ripi.ir)
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.
关键词	MXene nanosheets Graphene quantum dots Amino-silane Anti-corrosion epoxies Density functional theory
DOI	10.1016/j.reactfunctpolym.2024.105904
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Applied ; Engineering, Chemical ; Polymer Science
WOS记录号	WOS:001229756900001
出版者	ELSEVIER
WOS关键词	NANOCOMPOSITE COATINGS ; MECHANICAL-PROPERTIES ; OXIDE ; COMPOSITES ; ANTICORROSION ; RESISTANCE ; GRAPHITE ; EMISSION
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/185890
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Duan, Jizhou; Rashidi, Alimorad
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China 4.Padova Univ, Dipartimento Fis & Astron G Galilei, Via Marzolo 8, I-35131 Padua, Italy 5.Univ Turin, Dept Chem, NIS INSTM, Via Pietro Giuria 7, I-10125 Turin, Italy 6.Univ Turin, NIS INSTM, Via Pietro Giuria 7, I-10125 Turin, Italy 7.Res Inst Petr Ind RIPI, Nanotechnol Res Ctr, West Entrance Blvd,POB 14857-33111, Tehran, Iran
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
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.