Abstract

A novel kind of reduced graphene oxide (RGO)/Fe3O4/Ag composite was firstly synthesized by a rational route. The RGO/Fe3O4/Ag composite shows the maximum absorption of −58.1dB at 9.0GHz with the thickness of 2.6mm, and the absorption bandwidth with the reflection loss below −10dB is up to 13.4GHz (from 4.6 to 18.0GHz) with a thickness in the range of 1.5–4.0mm, suggesting that the microwave absorption properties and the absorption bandwidth are obviously enhanced by adding Ag NPs. It is believed that such composite could be used as a kind of candidate microwave absorber.

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