Gel formation specifics in the synthesis of Mg(Fe0.8Ga0.2)2O4 by the glycine–nitrate method

The gel formed in the synthesis of Mg(Fe0.8Ga0.2)2O4 powder from corresponding metal nitrates and glycine was studied by thermal and IR spectral analyses. Being a bidentate ligand, glycine was established to initiate the gel combustion reaction resulting in the oxide of the above composition. Based on the data on ΔH 298° and Cp of the reagents and reaction products, the thermodynamic parameters of this process were calculated.