Preparation and Evaluation of NiFe204 and CuFe204 Nanoeatalysts by Combination of Sol- Gel Auto-Combustion Method and Irradiation Technique

نویسندگان

  • A. M. Sharif -
  • F. Gharib -
  • G. Mahmoudzadeh -
  • R. Lotfi -
  • S. A. Khorrami -
  • S. A. Sepehr -
  • S. Madani -
  • S. Manie -
  • S. Moradi -
چکیده مقاله:

The dried nitrate-urea gels exhibit the combination of autoicatatric combustion behavior and ultrasonic, whichcan be used to synthesize the nanocatalyst ferrite powders. Cu and Ni Unites nanocatalyst powders sithcomposition of Caned], and NiFe204 were synthesized by a sol-gel auto catalnic combustion process. Themolar ratio between metal ions and urea was 11.2. The sob gel process was done at 80 °C. The nanopaniclecrystallines have been calcined at 800 °C.Combustion behavior and crystallite size of synthesized powders were investigated iyith the help of ScanningElectron Microscopy observation and X-ray diffraction technique. X- ray diffraction and Scanning ElectronMicroscopy were carried out for charactenzation of the powders. The grain size of the prepared femte powdersis found lobe in the range 30-35 mu_

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عنوان ژورنال

دوره 7  شماره 1

صفحات  33- 36

تاریخ انتشار 2010-05-01

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