New solid state routes to lithium transition metal oxides via reactions with lithium oxide

Article abstract of DOI:10.1016/S0277-5387(97)00257-X

Thermolysis of a mixture of lithium oxide and transition metal halides MX_n (M = Ti, Zr, Hf, V, Nb, Ta, Mo, W, Fe, Mn) at 800°C for 2-12 h produces crystalline lithium transition metal oxides Li₂MO₃ (M = Ti, Zr, Hf, Mn), Li₃MO₄ (M = V, Nb, Ta), Li₂MnO₃ Li₂Fe₃O₄ and Li₂MO₄ (M = Mo, W). For M = Cr, Co, Ni, Cu and Zn the reaction produces the metal oxides Cr₂O₃, NiO, CuO, ZnO and Co₃O₄. The metal oxides and lithium metal oxides were characterised by X-ray powder diffraction. SEM/EDAX, FT-IR and magnetic moment measurements.