Abstract
Herein, from the perspective of gaining the excellent microwave absorption performances, we decorated flower like MoS2 nanoflates on the cubic phase NiS2 and adjusted the adherent MoS2 content to construct different NiS2@MoS2 core-shell structures via a facile hydrothermal process. Besides, we also properly regulated the complex relative permittivity originated from NiS2@MoS2 content in the PVDF to optimize impedance matching behaviors. And the real and imaginary parts of permittivity gradually increase with the increase content of NiS2@MoS2 composite in PVDF and decrease of MoS2 supported on the surface of NiS2 For the filler content of 20 wt%, the NiS2@MoS2-0.065 composites covered with moderate MoS2 nanosheets exhibit an optimal reflection loss of −57.35 dB at 8.16 GHz and effective absorption bandwidths of 4.0 GHz. Moreover, we believe that as-synthesized NiS2@MoS2 core-shell structure is a reliable strategy to facilitate advancements of microwave absorbers.
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