Microwave absorption enhancement of nickel cobalt phosphides by decorating on reduced graphene oxide

Abstract Herein, NiCoP nanoparticles decorated on reduced graphene oxide (rGO) were synthesized through a two-step hydrothermal-phosphorization route as enhanced microwave absorbers. Microstructure investigations indicate that NiCoP nanoparticles are uniformly anchored on the surface of rGO. Compared with the bare NiCoP, NiCoP/rGO nanocomposites reveal clearly improved microwave absorbing performance. The strongest reflection loss (RL) values of NiCoP/rGO hybrid absorber can reach −20.61 dB at 6.43 GHz with a matching thickness of 4.4 mm, and a broad effective absorption bandwidth (RL