Synthesis of MgAl2O4 from dissociated products of MgCO3
In this study,the dissociation process of MgCO3 and the synthesis of MgAl2 O4 by using the dissocia-tion products and Al2O3 were studied.From the CCSD(T)6-311++G(d,p)and M06-2x/6-311++g(d,p)methods,the single-point energy and frequency of MgCO3 were calculated and the thermal decompo-sition process of the reactant was also calculated to find the transition states.In the meantime,the powders of MgAl2O4 were synthesized from MgCO3 and Al2O3 by high temperature sintering method at 1450℃ in the labora-tory.The experimental products were characterized by XRD and agreed with the theoretical calculation.
Magnesium carbonate MgCO3Aluminium oxide Al2O3Magnesium aluminate MgAl2O4Dissocia-tionTransition state
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