Pure phase of MgAl2O4 nanoparticles can successfully be
synthesized by a facile sol–gel auto combustion method using different
organic fuels urea, oxalic and citric acid at 250 _C then the
burnt product was calcined at 350 _C, separately, for 3.0 h. The
prepared sample was characterized by using different tools; FTIR,
UV–Vis, XRD, HR-TEM, FE-SEM. The Effect of fuels on the crystallite
size of MgAl2O3 products was studied