Space-Confined multiple interface in super-structured TiO2@PPy composite for enhanced electromagnetic wave absorption

He, Liming; He, Liming; Xu, Hongda; Wang, Xiaolong; Jin, Quan

doi:10.1016/j.apsusc.2023.158898

Cited by 8 publications

(1 citation statement)

References 66 publications

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“…Microwave technology has been extensively utilised in civil, military, medical, and scientific research fields due to the rapid evolution of electronic devices as well as wireless communication instruments, which are directly related to national security and social development [ 1 , 2 , 3 ]. However, electromagnetic wave radiation poses potential threats to biological systems, information security, and electromagnetic compatibility.…”

Section: Introductionmentioning

confidence: 99%

Co-Doped Porous Carbon/Carbon Nanotube Heterostructures Derived from ZIF-L@ZIF-67 for Efficient Microwave Absorption

He,

Xu,

Cui

et al. 2024

Molecules

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Carbon-based magnetic metal composites derived from metal–organic frameworks (MOFs) are promising materials for the preparation of broadband microwave absorbers. In this work, the leaf-like co-doped porous carbon/carbon nanotube heterostructure was obtained using ZIF-L@ZIF-67 as precursor. The number of carbon nanotubes can be controlled by varying the amount of ZIF-67, thus regulating the dielectric constant of the sample. An optimum reflection loss of −42.2 dB is attained when ZIF-67 is added at 2 mmol. An effective absorption bandwidth (EAB) of 4.8 GHz is achieved with a thickness of 2.2 mm and a filler weight of 12%. The excellent microwave absorption (MA) ability is generated from the mesopore structure, uniform heterogeneous interfaces, and high conduction loss. The work offers useful guidelines to devise and prepare such nanostructured materials for MA materials.

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Section: Introductionmentioning

confidence: 99%