首页|Construction of Co/C@MoS2 core–shell nanocubes with enhanced electromagnetic-wave absorption performance
Construction of Co/C@MoS2 core–shell nanocubes with enhanced electromagnetic-wave absorption performance
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NSTL
Elsevier
? 2022 Elsevier B.V.This investigation is aimed at obtaining superior electromagnetic wave (EMW) absorbers and we successfully prepared the core–shell-structured Co/C@MoS2 nanocubes comprising Co/C nanocubes tightly coated with uniform MoS2 nanosheets for the first time. The MoS2 nanoshells of the Co/C@MoS2 enabled the optimization of the impedance matching and generation of dipolar polarizations. The Co/C cores also increased the conductivity of the resultant Co/C@MoS2 composites, thus promoting the attenuation ability of the EMW. The synergetic contributions of improved impedance matching and multiple loss mechanisms led to excellent EMW absorption of the Co/C@MoS2. In particular, the reflection loss of the Co/C@MoS2 reached ? 52.76 dB at 8.88 GHz for a 2.5-mm-thick absorber while the effective attenuation bandwidth under ? 10 dB was 3.84 GHz for a 1.5-mm-thick absorber. Accordingly, the prepared Co/C@MoS2 with enhanced absorption performance is a promising absorber and we also proposed a facile design and synthesis strategy for new EMW absorbers in this paper.
The Key Laboratory of Advanced Polymer Materials of Shanghai and Key Laboratory of Specially Functional Polymeric Materials and Related Technology Ministry of Education School of Materials Science and Engineering East China University of Science and Techn
NSTL
Elsevier
