Abstract
In order to obtain high-performance electromagnetic wave absorbers, the adjustment of structure and components is essential. Based on the above requirements, this system forms a three-dimensional frame structure consisting of MXene and transition metal oxides (TMOs) through efficient electrostatic self-assembly. This three-dimensional network structure has rich heterojunction structures, which can cause a large amount of interface polarization and conduction losses in incident electromagnetic waves. Hollow structures cause multiple reflections and scattering of electromagnetic waves, which is also an important reason for further increasing electromagnetic wave losses. When the doping ratio is 1:1, the system has the best impedance matching, the maximum effective absorption bandwidth (EABmax) can reach 5.12 GHz at 1.7 mm, and the minimum reflection loss (RLmin) is -50.30 dB at 1.8 mm. This provides a reference for the subsequent formation of 2D-MXene materials into 3D materials.
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