S TDS-DSC measurements in magnesium hydride

Decomposition of MgH has been studied by means of simultaneous thermal desorption spectroscopy (TDS) and differential scanning 2 calorimetry (DSC). Measurements have been accomplished in an experimental set-up composed of a differential scanning calorimeter connected through a capillary tube to a mass spectrometer. The experimental system allows the simultaneous determination of the heat absorbed by and the hydrogen evolved from MgH during its thermal decomposition. The H-desorption from magnesium hydride samples 2 non-exposed to air has been studied. The desorption curves are analysed with a nucleation and growth formalism and kinetic parameters are obtained.  2002 Elsevier B.V. All rights reserved.