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Isobaric and isothermal DSC measurements of metal-hydrogen systems

Authors
Journal
Thermochimica Acta
0040-6031
Publisher
Elsevier
Publication Date
Volume
271
Identifiers
DOI: 10.1016/0040-6031(95)02584-7
Keywords
  • Dsc
  • Enthalpy
  • Kinetics
  • Hydride
Disciplines
  • Physics

Abstract

Abstract The reversible formation reaction of hydrides from metals and hydrogen is used as a prototype of a gas-solid heterogeneous reaction in order to show that a sufficient thermodynamic and kinetic characterization of such reactions can be achieved by isothermal and isobaric DSC measurements. The isobaric measurements essentially provide thermodynamic data such as reaction enthalpy, yield and the pressure-temperature relation. On the other hand, the isothermal measurements can be used for kinetic evaluation due to the small number of parameters. Results are given for the PdH and LaMgH systems.

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