Synthesis and microwave absorption enhancement of Fe-doped NiO@SiO2@graphene nanocomposites

- Fe-doped NiO@SiO2@graphene composites have excellent microwave performance.
- The reflection loss of Fe doped NiO@SiO2@graphene was below −10 dB in 7-11 GHz.
- The maximum absorption of Fe-doped NiO@SiO2@graphene was −51.2 dB at 8.6 GHz.