Comparison of electromagnetism behavior of different content cobalt-zinc ferrite loaded with graphene

【Author】

MA Zhijun;MANG Changye;ZHAO Haitao;GUAN Zhihao;CHENG Liang

【Institution】

College of Mining, Liaoning Technical University;College of Mining, Liaoning Technical University;College of Mining, Liaoning Technical University;College of Mining, Liaoning Technical University;College of Mining, Liaoning Technical University

【Abstract】

A kind of graphene composite (rGO/Co 0.5Zn 0.5Fe 2O 4) was synthesized with the graphene oxide (GO) prepared from natural flake graphite and cobalt-zinc ferrite (Co 0.5Zn 0.5Fe 2O 4) manufactured by the hydrothermal method. The structure of composites was characterized by X-ray diffraction (XRD), Raman spectrometer (Raman) and the Fourier-transform infrared spectroscopy (FT-IR). The morphology, electromagnetic loss properties, Debye relaxation, and microwave absorbing properties of rGO/Co 0.5Zn 0.5Fe 2O 4 were investigated by transmission electron microscope (TEM) and vector network analyser (VNA). The sharp peak of graphene oxide was changed from 2 θ = 9.74° to 24.15° in the XRD patterns and the oxygen functional group disappeared after the composite reaction, which demonstrated that GO was successfully reduced to rGO. The graphene was embedded with cobalt-zinc ferrite, observed by transmission electron microscope, with its dispersion worse with the loaded Co 0.5Zn 0.5Fe 2O 4 increasing. The absorbing property of rGO/Co 0.5Zn 0.5Fe 2O 4 composite prepared with w(Co 0.5Zn 0.5Fe 2O 4):w(GO) = 2:1 was the best with the minimum reflectivity of ?36.89 dB at 15.11 GHz and the effective absorption frequency bandwidth of 3.74.

【Keywords】

graphene;composite materials;cobalt-zinc ferrite;electromagnetic behavior;graphene oxide

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Total: 18 articles

  • [1] ZHANG Xiao-chuan1,WANG De-ping1,YAO Ai-hua1,WU Wei-he2,HUANG Wen-hai1(1.School of Materials Science and Engineering,Tongji University,Shanghai 200092,China;2.Yageo components(Suzhou)co.,Ltd Technology Research Center,Suzhou 215011,China), Optimization on Preparation Process of Mn-Zn Ferrite Powder by Sol-gel Method, Bulletin of the Chinese Ceramic Society,
  • [2] AN Rui;WEI Hongyu;HE Min;ZHOU Laishui;LIANG Jinhua;XIE Di;ZHANG Zhiping;WU Huanqi;College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics;AVIC Chengdu Aircraft Industry(Group)Co.Ltd.;, The Progress Analysis of Carbon-based Composites Used for Electromagnetic Wave Absorption, Materials Review,
  • [3] ZHAO Hai-tao;ZHANG Qiang;LIU Rui-ping;DING Xue-yong;MA Rui-ting;School of Materials Science and Engineering,Shenyang Ligong University;School of Materials and Metallurgy,Northeastern University;, Synthesis and Magnetic Properties of Monodisperse ZnFe_2O_4 Nanoparticles, Journal of Materials Engineering,
  • [4] Yan Geng;;Shu Jun Wang;;Jang-Kyo Kim, Preparation of graphite nanoplatelets and graphene sheets, Journal of Colloid And Interface Science,

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