Reduced graphene oxide (RGO)/Mn3O4 nanocomposites for dielectric loss properties and electromagnetic interference shielding effectiveness at high frequency

Research output: Contribution to journalArticlepeer-review

Authors

  • Yan Wang
  • Hongtao Guan
  • Chenjun Dong
  • Xuechun Xiao
  • Yude Wang

Colleges, School and Institutes

External organisations

  • Department of Materials Science and Engineering, Yunnan University, 650091 Kunming

Abstract

Reduced graphene oxide (RGO)/Mn3O4 nanocomposites are prepared by a one-step hydrothermal approach and the performance of electromagnetic interference (EMI) shielding was studied. Based on an enhanced electrical conductivity through micro-current network induced by unique 2D nanostructures of RGO, the electron hopping between Mn2+ and Mn3+ is discussed. Benefiting from the enhanced effect of Debye dipolar relaxation and Maxwell-Wagner-Sillars (MWS) polarization on dielectric properties, electromagnetic wave propagating and microwave attenuation performance, the maximum EMI shielding effectiveness of 29 dB is achieved.

Details

Original languageEnglish
Pages (from-to)936-942
JournalCeramics International
Volume42
Issue number1
Early online date11 Sep 2015
Publication statusPublished - Jan 2016

Keywords

  • Nanocomposites, Dielectric properties, Magnetic properties, EMI shielding effectiveness

ASJC Scopus subject areas