Preparation and Evaluation of NiFe204 and CuFe204 Nanoeatalysts by Combination of Sol- Gel Auto-Combustion Method and Irradiation Technique
الموضوعات : 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
(-)
الکلمات المفتاحية: Auto-Combustion: Irradiation T, NiFe204, SEM, XRD,
ملخص المقالة :
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_
