Thermal study on decomposition of LiBH4 at non-isothermal and non-equilibrium conditions

Thermal decomposition measurements for lithium borohydride (LiBH4) are performed at non-isothermal and non-equilibrium conditions by means of differential thermal analysis (DTA). A simplified alternative procedure is introduced for evaluating thermodynamic and kinetic parameters simultaneously using a single set of measurements. Rate constant (k) and enthalpy (Delta H = -102.1 +/- A 0.7 kJ mol(-1) LiBH4) are archived. Temperature dependence for activation energy (E (a)) is found taking advantage of Guggenheim-Arrhenius method; the mean activation energy is 93.9 +/- A 0.9 kJ mol(-1) LiBH4 in the range of heating rate beta 1-50 K min(-1).