Coupling Hollow Fe<sub>3</sub>O<sub>4</sub>–Fe Nanoparticles with Graphene Sheets for High-Performance Electromagnetic Wave Absorbing Material
Bin QuDepartment of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin 150030, ChinaChunling ZhuCollege of Material Science and Chemical
Engineering, Harbin Engineering University, Harbin 150001, ChinaChunyan LiKey Laboratory
of In-Fiber Integrated Optics, Ministry of Education, and College
of Science, Harbin Engineering University, Harbin 150001, ChinaXitian ZhangKey Laboratory for Photonic and Electronic Bandgap Materials,
Ministry of Education, and School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, ChinaYujin ChenKey Laboratory
of In-Fiber Integrated Optics, Ministry of Education, and College
of Science, Harbin Engineering University, Harbin 150001, China
2016en
ABI
Аннотация
We developed a strategy for coupling hollow Fe3O4-Fe nanoparticles with graphene sheets for high-performance electromagnetic wave absorbing material. The hollow Fe3O4-Fe nanoparticles with average diameter and shell thickness of 20 and 8 nm, respectively, were uniformly anchored on the graphene sheets without obvious aggregation. The minimal reflection loss RL values of the composite could reach -30 dB at the absorber thickness ranging from 2.0 to 5.0 mm, greatly superior to the solid Fe3O4-Fe/G composite and most magnetic EM wave absorbing materials recently reported. Moreover, the addition amount of the composite into paraffin matrix was only 18 wt %.
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