Tailorable microwave absorption properties of RGO/SiC/CNT nanocomposites with 3D hierarchical structure

Carbon Nanotubes with Tailored Amorphous Graphitic Components for Electromagnetic Wave Absorption

“…As observed, all CNT-based samples deliver ε′ and ε″ values with a decreased trend based on increased frequency, which indicates that the displacement current cannot catch up with the build-up potential in the alternating electric field . Such results are consistent with those of other literature. − Additionally, the ε′ and ε″ values of CNTs gradually increase from CNT-300 to CNT-700. This can be interpreted as the increase of the graphitic carbon component with the increased temperature.…”

Fiber, monolithic fiber and twisted fiber structures: efficient microwave absorption via surface-modified carbon nanotube buckypaper/silicon carbide-based self-sealing layered composites

“…53,54 The CSSLS composites prepared in our work are structurally and functionally integrated self-sealing composites, and the absorption properties of the composites were tested via the waveguide method. The RL and EAB values obtained in this study were compared with those of other composites with similar compositions reported 24,26,[31][32][33][34][55][56][57] in the literature using the data shown in Fig. 5j.…”

“…[22][23][24][25][26] However, powders can only be used when they are supported by other substrates. While assembling powders into porous foam absorbers provides a promising avenue for research to address the limitations of powders, [27][28][29][30][31][32][33][34] the high porosity of foam absorbers reduces the mechanical properties of composites and limits their practical application. Therefore, a CNT/SiC-based absorber with structuralfunctional integration characteristics is urgently needed.…”

Recent advances in 3D printed structures for electromagnetic wave absorbing and shielding

“…In recent years, tremendous efforts have been devoted to developing EMSA structures and materials with higher loss reflection and/or a wider frequency region to improve the electromagnetic attenuation. Currently, various kinds of materials including metallic materials, [10][11][12][13][14][15] carbon based materials, [16][17][18][19][20][21][22] metal-organic framework (MOF) derived composites, [23][24][25][26][27][28][29] MXenebased materials [30][31][32][33][34][35][36][37] and ceramic-based composites [38][39][40][41][42] are widely explored. According to the working principles, they can be divided into electromagnetic wave shielding and electromagnetic wave absorption.…”