CONCLUSION Self Propagating High Temperature (SPHT) method using an internal fuel resulted in the stoichiometrically satisfactory cathode materials (LiNiV0 4 and LiMnV0 4 ) with better purity and crystallinity. Despite the lowest temperature (573 K) and minimum time adopted for the heat treatment, the products obtained from the fuel based synthesis (SPHT) showed growth controlled sub micronie particles with larger surface area .The electrochemical behavior of both the cathodes was found to be

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... tter for the products obtained from SPHT method compared to those of carbonate and acetate precursor methods. Also, higher fuel calorific value fuels in SPHT method yielded products that exhibited enhanced cycle life without much capacity fade. ABSTRACT: The acidic dissociation constants of the protonated form of 2-amino-(2-hydroxymethyl)propane-l,j-diol (tris) and 2-amino-2-methy]propane-l,3-diol (bis) in a series of water/1.2 dniiethoxy ethane mixtures at 5 °C temperature intervals from 25 to 45 °C are determined using a cell without liquid junction potential The corresponding thermodynamic parameters (AG", AH", and AS") of the protonated form of these buffer indicators in the various solvent mixtures are evaluated. The variation of the standard free energy change of transfer with solvent compositions for both indicators indicates a characteristic minimum which is attributed to selective solvation of the individual species participating in the equilibrium process. Solubility measurements of these indicators at different temperatures are determined in order to evaluate the thermodynamic functions of the transfer of the free bases which may provide a better insight on the nature of the ion-solvent interactions and the relative basicity of the solvent.