Facile Design and Enhanced Interface Polarization of CoFe-PBA/MXene Towards Microwave Absorption, EMI Shielding and Energy Storage
CARBON(2024)
摘要
Electromagnetic properties and electrochemical properties of MXene hybrid materials have been one of the research hotspots. The development of high-performance MXene multifunctional composite materials is a challenging task. In this work, the free-stack CoFe-PBA/Ti3C2Tx MXene with lots of interfaces were fabricated using simple hydrothermal technology. The material can be used for microwave absorption, electromagnetic interference shielding and charge storage. Among them, CoFe-PBA/ Ti3C2Tx MXene with the mass ratio of 1:3 achieved a maximum absorbing bandwidth of 4.72 GHz greater than 10 dB at 1.74 mm, covering the complete X-band; and certain electromagnetic shielding performance and good supercapacitance characteristics. The excellent electromagnetic attenuation characteristics derives from the intrinsic properties of charge transport and dielectric relaxation interface within CoFe-PBA/ Ti3C2Tx MXene, and its rich active sites and carrier transport characteristics determine its good electrochemical performance. These results show that CoFe-PBA/Ti3C2Tx MXene is an excellent multifunctional material with potential application prospects in technical fields such as macrowave absorption, electromagnetic shielding and energy storage.
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关键词
CoFe-PBA/MXene,Microwave absorption,Electromagnetic interference shielding,Supercapacitance
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