Synthesis of homologous compounds Fe2O3(ZnO)m (m=6, 8, 34) by various selective microwave heating conditions

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Homologous compounds, Fe2O3(ZnO)m, with a modulated natural superlattice structure, were synthesized within 10 min at 1200 °C in a simple solid-state reaction under 2.45 and 28 GHz microwave irradiation. Transmission electron microscopy and energy dispersive X-ray spectroscopy results revealed that m decreased with increasing the synthesis temperature and microwave frequency. In the Zn-Fe-O system, γ-Fe2O3 was heated in H and E-field and ZnO was heated in E-field under 2.45 GHz microwave irradiation. However, α, γ-Fe2O3 and calcined ZnO were heated under 28 GHz microwave irradiation. This selective microwave heating resulted in the different diffusion conditions than conventional heating; therefore, homologous compounds with low m values were rapidly synthesized at low temperature.

Original languageEnglish
Pages (from-to)14021-14028
Number of pages8
JournalCeramics International
Issue number10
Publication statusPublished - 2015 Apr 9


  • Homologous compounds
  • Microwave synthesis
  • Natural superlattice
  • Selective heating

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry


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