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Journal of Materials Science

, Volume 28, Issue 7, pp 1793–1798 | Cite as

Formation of oxide phases in the system Fe2O3-NiO

  • S. Musić
  • S. Popović
  • S. Dalipi
Papers

Abstract

Mixed metal oxides in the system Fe2O3-NiO were prepared by coprecipitation of Fe(OH)3/Ni(OH)2 and the thermal treatment of hydroxide coprecipitates up to 800 or 1100°C. X-ray diffraction showed the presence of α-Fe2O3, NiO and NiFe2O4 in samples prepared at 800°C. The oxide phases α-Fe2O3, NiO, NiFe2O4 and a phase with structure similar to NiFe2O4 were found in samples prepared at 1100°C. Fourier transform-infrared spectra of oxide phases formed in the system Fe2O3-NiO are discussed. Two very strong infrared bands at 553 and 475 cm−1, a weak intensity infrared band at 383 cm−1 and two shoulders at 626 and 441 cm−1 were observed for α-Fe2O3 prepared at 1100°C. NiFe2O4, prepared at the same temperature, showed two broad and very strong infrared bands at 602 and 411 cm−1, while NiO showed a broad infrared band at 466 cm−1. Fourier transform infrared spectroscopic results were in agreement with X-ray diffraction.

Keywords

Oxide Polymer Fourier Hydroxide Fourier Transform 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • S. Musić
    • 1
  • S. Popović
    • 1
  • S. Dalipi
    • 1
  1. 1.Rudjer Bošković InstituteZagrebCroatia

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