Mo<sub>2</sub>C Supported by Oxidized Carbon Nanotubes for Reinforcing Epoxy Composite

doi:10.1021/acsanm.5c00033

IMR OpenIR

	Mo₂C Supported by Oxidized Carbon Nanotubes for Reinforcing Epoxy Composite
	Wang, Qi 1,2; Xiao, Pengfei 3; Liu, Yaqing 1; Zeng, You 2; Zhong, Bingwei 3
通讯作者	Liu, Yaqing(lyq@nuc.edu.cn) ; Zeng, You(yzeng@imr.ac.cn) ; Zhong, Bingwei(20140040@zafu.edu.cn)
	2025-03-17
发表期刊	ACS APPLIED NANO MATERIALS
卷号	8 期号:12 页码:5951-5960
摘要	It is crucial to weaken the influence of sacrificing the mechanical properties of epoxy matrices by enhancing the efficiency of flame retardants. Herein, we utilized oxidized carbon nanotube (oCNT) as a dual-functional component, serving as both carbon sources and supports for Mo2C nanoparticles, and effectively modified N species to oCNT, improved the dispersion of Mo2C, and combined Mo2C with oCNT simultaneously. The physical and chemical properties of the resulting Mo2C@oCNT were characterized. Remarkably, the incorporation of merely 0.18 wt % Mo2C in the epoxy composite yielded simultaneous and significant improvements in mechanical and flame-retardant properties. The composite exhibited substantial enhancements in key mechanical parameters, with tensile strength, impact strength, and storage modulus increasing by 6.5, 38.1, and 10.5%, respectively. Concurrently, the flame retardancy performance showed marked improvement, as evidenced by a 12% increase in the limiting oxygen index, an 8.6% extension in time to peak heat release rate, and a 52.5% elevation in char yield. Furthermore, critical fire safety parameters demonstrated significant reduction, with the peak heat release rate, total heat release, and total smoke production decreasing by 19.2, 10.2, and 12.7%, respectively. Mo2C@oCNT/epoxy nanocomposite exhibited the lowest fire growth rate value of 5.05 kWm(-2)s(-1). The enhanced mechanical performance was attributed to the strong and extensive interfacial interactions that facilitated efficient stress transfer from the epoxy matrix to the strong Mo2C@oCNT. The superior catalytic dehydrogenation performance of Mo2C contributed to carbonization and forming protective chars during combustion, leading to enhanced flame retardant performances of Mo2C@oCNT/epoxy nanocomposite. This work presents a promising strategy for developing high-performance epoxy nanocomposites with balanced mechanical and flame-retardant properties through rational nanohybrid design.
关键词	Mo2C carbonization epoxy mechanical properties flame retardancy
资助者	Shanxi Scholarship Council of China ; Shanxi Scholarship Council of China ; Shanxi Province 1331 Project Key Innovation Team of Polymeric Functional New Materials and Shanxi Province Innovative Disciplinary Group of New Materials Industry
DOI	10.1021/acsanm.5c00033
收录类别	SCI
语种	英语
资助项目	Shanxi Scholarship Council of China[2023-138] ; Shanxi Scholarship Council of China ; Shanxi Province 1331 Project Key Innovation Team of Polymeric Functional New Materials and Shanxi Province Innovative Disciplinary Group of New Materials Industry
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:001447020200001
出版者	AMER CHEMICAL SOC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/192149
专题	中国科学院金属研究所
通讯作者	Liu, Yaqing; Zeng, You; Zhong, Bingwei
作者单位	1.North Univ China, Sch Mat Sci & Engn, Shanxi Key Lab Nano Funct Composite Mat, Taiyuan 030051, Shanxi, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 3.Zhejiang A&F Univ, Jiyang Coll, Zhuji 311800, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Wang, Qi,Xiao, Pengfei,Liu, Yaqing,et al. Mo₂C Supported by Oxidized Carbon Nanotubes for Reinforcing Epoxy Composite[J]. ACS APPLIED NANO MATERIALS,2025,8(12):5951-5960.
APA	Wang, Qi,Xiao, Pengfei,Liu, Yaqing,Zeng, You,&Zhong, Bingwei.(2025).Mo₂C Supported by Oxidized Carbon Nanotubes for Reinforcing Epoxy Composite.ACS APPLIED NANO MATERIALS,8(12),5951-5960.
MLA	Wang, Qi,et al."Mo₂C Supported by Oxidized Carbon Nanotubes for Reinforcing Epoxy Composite".ACS APPLIED NANO MATERIALS 8.12(2025):5951-5960.