石墨烯/Fe3O4/FeSiAl复合材料的制备及吸波性能
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国家自然科学基金项目(面上项目,重点项目,重大项目)


Preparation and Absorbing Properties of Graphene/ Fe3O4/FeSiAl Composites
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The National Natural Science Foundation of China (General Program, Key Program, Major Research Plan)

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    摘要:

    本文采用水热法制备石墨烯/Fe3O4/FeSiAl复合材料。通过XRD、SEM、Raman、FTIR和矢量网络分析仪(PNA)等测试手段对石墨烯/Fe3O4/FeSiAl复合材料的晶相、微观形貌和吸波性能进行了表征和分析。结果表明:通过水热还原,氧化石墨烯还原成石墨烯,并且生成的石墨烯及Fe3O4颗粒均匀包覆在FeSiAl片状磁粉上,这种片状和颗粒状不同结构的复合,制备出了兼具磁损耗和介电损耗的吸波材料。随着氧化石墨烯与FeSiAl质量比的增加,石墨烯/Fe3O4/FeSiAl复合材料的有效吸收频带(反射率小于-10 dB)向高频移动,有助于吸波材料在高频段的应用。

    Abstract:

    The Graphene/Fe3O4/FeSiAl composite was prepared by hydrothermal method. Crystal phase, microstructure and wave absorbing property of the Graphene/Fe3O4/FeSiAl composite were characterized by XRD, Raman, SEM, FTIR and PNA. The results shown that graphene oxide was reduced to graphene by hydrothermal method. And FeSiAl magnetic flakes were coated by graphene and Fe3O4 particles evently. The absorbing material with both magnetic loss and dielectric loss can be realized by composite of flaky and granular. As the mass ratio of graphene oxide with FeSiAl increases, the effective absorption band (RL<-10 dB) of graphene/Fe3O4/FeSiAl composites is moved to higher frequency, which is positive for the application of the absorbent material in the high frequency band.

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金丹,郭宇鹏,孙可为,丁冬海.石墨烯/Fe3O4/FeSiAl复合材料的制备及吸波性能[J].精细化工,2018,35(10):

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  • 收稿日期:2017-11-29
  • 最后修改日期:2018-03-20
  • 录用日期:2018-03-27
  • 在线发布日期: 2018-10-08
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