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The spinels LiMn 1.5 Me 0.5 O 4 and LiMnMeO 4 (Me: Ni, Fe) were prepared using either a sol—gel process in the case of nickel doping, or a solid-state reaction in the case of iron doping. X-ray diffraction analysis revealed differences in the patterns when the content of the dopant in the spinel increases. The pattern of LiMn 1.5 Ni 0.5 O 4 was...
LiNi 1-y CO y O 2 has been prepared at 400 °C by using β-Ni 1-y Co y OOH and either LiNO 3 or LiOH. The mechanism of these reactions was clarified by differential thermal and thermogravimetric analyses. The material prepared with LiNO 3 is well crystallized because LiNO 3 melts and then reacts with the oxyhydroxide...
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