The thermodynamics of Li+ insertion in two layered oxides. MoO3 and Mo18O52,has been evaluated by electrochemical and calorimetric techniques. The two compounds have similar structures, but the distortion of the first, especially in the plane of the layers, is significantly larger. This causes a structural rearrangement for MoO3 which gives rise to high integral entropies of insertion per mole of Li+. ΔS/x values of 80-110 JK-1mol-1 have been calculated in the range 0<Li+/mol<1.0. Mo18O52 shows ΔS/x value within the limits expected for a reaction between solid components, thus indicating a lower degree of structural disturbance induced by Li+.
Effect of the different structural distortions of MoO3 and its homologous Mo18O52 upon the thermodynamics of Li+ insertion / Pasquali, Mauro; G., Pistoia; F., Rodante. - In: THERMOCHIMICA ACTA. - ISSN 0040-6031. - STAMPA. - 121:(1987), pp. 203-214. [10.1016/0040-6031(87)80172-7]
Effect of the different structural distortions of MoO3 and its homologous Mo18O52 upon the thermodynamics of Li+ insertion.
PASQUALI, Mauro;
1987
Abstract
The thermodynamics of Li+ insertion in two layered oxides. MoO3 and Mo18O52,has been evaluated by electrochemical and calorimetric techniques. The two compounds have similar structures, but the distortion of the first, especially in the plane of the layers, is significantly larger. This causes a structural rearrangement for MoO3 which gives rise to high integral entropies of insertion per mole of Li+. ΔS/x values of 80-110 JK-1mol-1 have been calculated in the range 0I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
