Synthesis and characterization of magnesium aluminates spinel via combustion method using malonic acid dihydrazide as fuel
Journal Title: Caspian Journal of Applied Sciences Research - Year 2013, Vol 2, Issue 2
Abstract
Nanoparticle magnesium aluminate spinel powder MgAl2O4 was synthesized by combustion method at 300◦C via combusted a stoichiometric mixture of aluminum and magnesium nitrates with malonic acid dihydrazide as a fuel following by annealing at 800, 1000 and 1200OC. The obtained samples characterized by different tools as thermal analysis (TG-DTA), X-ray diffractions (XRD), UV–Vis spectroscopy, transmission electron microscopy (TEM) and infrared spectroscopy (IR). Particle sizes with a size of 10-12.5 nm was produced within the range of 800-1200oc for 2h for each temperature. The energy gap was shifted from 3.76 at 800oc to 2.95 eV at 1000oc due to the formation of high crystalline structure as result of the annealing.
Authors and Affiliations
Ayman. Ali, Mahmud Allazov, Teymur Ilyasli
Keywords
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