Phase Composition of Ni1–2хMnхCoхOy Precursors, where x = 0–0.5, Obtained by Solution Combustion Synthesis

Precursors of composition Ni1–2хMnхCoхOy, where x = 0–0.5, have been prepared by solution combustion synthesis. The phase composition of precursors have been confirmed by X-ray powder diffraction. Samples morphology has been studied by scanning electron microscopy in combination with energy-dispersive analysis. Change in the phase composition of precursors of mixed d-metal oxides depending on synthesis conditions and annealing temperatures has been studied. NiO, Ni, and MnCo2O4 content in Ni1–2хMnхCoхOy precursors composition after solution combustion synthesis (SCS) and after 550°C have been studied. Dependence of parameter a of crystal lattice of spinel phase on the composition of sample after annealing at 550, 800, and 900°C has been determined. Precursor Ni1–2хMnхCoхOy (x = 0.1–0.333) is monophase after annealing at 550°C.