Journal
MATERIALS TODAY-PROCEEDINGS
Volume 2, Issue 4-5, Pages 3750-3757Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matpr.2015.07.165
Keywords
NiFe2O4; ferrite; sol-gel; combustion; X-ray diffraction
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Nickel ferrite nanoparticles were syntheiszed by sol-gel method using urea as a fuel. The nanoparticles were characterized by XRD, SEM, TGA, FTIR and UV-visible techniques. TGA showed that the gel decomposed around 230 degrees C followed by crystallization. XRD revealed the formation of spinel structure with space group of Fd3m. Scherrer and Williamson-Hall method is applied to determine crystal size and strain present in sample. FTIR showed fundamental absorption bands related to octahedral and tetrahedral sites, in the range 400-600cm(-1). SEM showed agglomerated flakes having void and pores on the surface. UV-vis indicated the bandgap of sample is 5.5 eV. (C) 2015 Elsevier Ltd. All rights reserved.
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