3D graphene–Fe3O4 nanocomposites with high-performance microwave absorption.

3D Fe₃O₄–graphene nanocomposites were conveniently prepared via a direct hydrothermal grafting method. On the basis of the unique properties of both single-crystalline Fe₃O₄ and 3D chemically reduced graphene oxide, with characteristics such as ultralow density and high surface area, the as-prepared graphene–Fe₃O₄ nanocomposites showed high-performance microwave absorption ability and have the potential for application as advanced microwave absorbers. [ABSTRACT FROM AUTHOR]