摘要
随着科技的发展,便携式电子设备的使用日益广泛,不可避免地在其周围环境中产生大量电磁辐射,对电磁波吸收材料开发及性能优化迫在眉睫,这不仅能够保护人体远离电磁波干扰,同时也可以减少电磁波的二次污染,在民用和军事上都有着重要的研究意义.二维纳米材料Mxene具有低密度、大比表面积、优异的电导率和良好的化学活性等特点,在电磁防护领域具有巨大的应用前景.碳基材料,如石墨烯、碳纳米管、碳纤维等,因其良好的热/电性能而被广泛用于电磁干扰保护,将Mxene与碳基材料进行有机结合、优势互补,则能设计、制备出高性能电磁吸收剂.综述了 Mxene/碳基复合材料在吸波领域的研究进展,详细介绍了 Mxene/碳基复合材料吸收剂的损耗机制,并对其结构进行分析.最后在制备、结构和多功能等方面对Mxene/碳基复合吸收剂的未来发展方向进行了展望.
Abstract
With the development of science and technology,the use of portable electronic equipment is becoming more and more extensive,and it is inevitable to produce a large amount of electromagnetic radiation in its sur-rounding environment,and it is urgent to develop electromagnetic wave absorbing materials and optimize their performance,which can not only protect the human body from electromagnetic wave interference,but also re-duce the secondary pollution of electromagnetic waves,which has important research significance in civil and military affairs.The two-dimensional nanomaterial Mxene has the characteristics of low density,large specific surface area,excellent electrical conductivity and good chemical activity,and has great application prospects in the field of electromagnetic protection.Carbon-based materials,such as graphene,carbon nanotubes,carbon fi-bers,etc.,are widely used for electromagnetic interference protection because of their good thermal/electrical properties.In this paper,the research progress of Mxene/carbon matrix composites in the field of wave absorp-tion is reviewed,and the loss mechanism of Mxene/carbon matrix composites absorbers is introduced in detail,and its structure is analyzed.Finally,the future development direction of Mxene/carbon-based composite ab-sorber is prospected in terms of preparation,structure and multi-function.
维普
万方数据