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  • 文献标题:   Hydrothermal synthesis of reduced graphene oxide-Co3O4 composites and the excellent microwave electromagnetic properties
  • 文献类型:   Article
  • 作　　者:   LIU PB, HUANG Y, WANG L, ZONG M, ZHANG W
  • 作者关键词:   carbon material, magnetic material, electromagnetic parameter, dielectric los, microwave absorbing propertie
  • 出版物名称:   MATERIALS LETTERS
  • ISSN:   0167-577X EI 1873-4979
  • 通讯作者地址:   Northwestern Polytech Univ
  • 被引频次:   74
  • DOI:   10.1016/j.matlet.2013.05.136
  • 出版年:   2013

▎ 摘　　要

Reduced graphene oxide-Co3O4 composites (RGO-Co3O4) were synthesized by a simple hydrothermal method and the electromagnetic and microwave absorbing properties of RGO-Co3O4 were investigated for the first time. The diameter of Co3O4 nanoparticles is in the range of 5-15 nm. Electromagnetic parameters showed that the electromagnetic attenuation mechanism of RGO-Co3O4 is mainly dependent on dielectric loss. The resulting microwave adsorption properties showed that the maximum reflection loss of RGO-Co3O4 is up to -43.7 dB at 13.8 GHz and the absorption bandwidth with the reflection loss below -10 dB is 4.6 GHz with a thickness of 3.3 mm. The excellent microwave absorption properties of RGO-Co3O4 can be used as an attractive candidate for the new type of microwave absorptive materials. (C) 2013 Elsevier B.V. All rights reserved.