Abstract
A composite of MoO3@Fe2(MoO4)3 and reduced graphene oxide (rGO) (MoO3@Fe2(MoO4)3/rGO) was prepared for application as a high-efficiency electromagnetic wave (EMW) absorbing material. MoO3 acted as the core that forms a conductive network between the rGO layers and Fe2(MoO4)3 acted as the shell of the MoO3@Fe2(MoO4)3 heterostructure that consumes the incident EMW by magnetic loss. The relationship between the chemical composition, micromorphology, and absorption performance of the composite was investigated in detail. The MoO3@Fe2(MoO4)3/rGO-30 wt% composite with a thickness of 1.91 mm showed a minimum reflection loss of −71.3 dB at 14.4 GHz and an effective absorption bandwidth of up to 5.8 GHz (12.2–18.0 GHz). This study provides a new pathway for the synthesis of novel effective EMW-absorbing materials with low thickness, high strength, large bandwidth, and light weight.
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