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

Subject Areas : Journal of Physical & Theoretical Chemistry

S. A. Khorrami ¹ (-)
S. A. Sepehr ² (-)
S. Manie ³ (-)
G. Mahmoudzadeh ⁴ (-)
S. Madani ⁵ (-)
S. Moradi ⁶ (-)
A. M. Sharif ⁷ (-)
F. Gharib ⁸ (-)
R. Lotfi ⁹ (-)

Received: 2015-05-30 Accepted : 2015-05-30 Published : 2010-05-01

Keywords: Auto-Combustion: Irradiation T, NiFe204, SEM, XRD,

Abstract :

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_