One-pot hydrothermal synthesis of RGO/CoFe2O4 composite and its excellent microwave absorption properties

Meng Zong, Ying Huang, Haiwei Wu, Yang Zhao, Qiufen Wang, Xu Sun

Research output: Contribution to journalArticlepeer-review

144 Scopus citations

Abstract

Reduced graphene oxide (RGO)/CoFe2O4 composite was synthesized by a one-pot hydrothermal route, which avoided the usage of chemical reducing agent. The reduction of graphene oxide (GO) and the crystallization of CoFe2O4 crystals happened in a one step process by the hydrothermal method. The RGO/CoFe2O4 composite shows remarkably improved electromagnetic performance in comparison with CoFe 2O4 NPs and reported pure RGO. Not only a larger reflection loss (-47.9 dB at 12.4 GHz), but also a wider absorption band (less than -10 dB from 12.4 to 17.4 GHz) has been achieved in the frequency range of 2-18 GHz. It is believed that such composites could be used as a candidate microwave absorber.

Original languageEnglish
Pages (from-to)52-55
Number of pages4
JournalMaterials Letters
Volume114
DOIs
StatePublished - 2014

Keywords

  • Carbon materials
  • Magnetic materials
  • Microwave absorbing
  • Nanocomposites
  • RGO
  • XPS

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