This title appears in the Scientific Report : 2015 

Modelling and proper evaluation of volumetric kinetics of hydrogen desorption by metal hydrides
Drozdov, I. V. (Corresponding author)
Kochubey, V. / Meng, Li / Mauer, G. / Vassen, Robert / Stöver, Detlev
Werkstoffsynthese und Herstellungsverfahren; IEK-1
International journal of hydrogen energy, 40 (2015) 32, S. 10111 - 10122
New York, NY [u.a.] Elsevier 2015
10.1016/j.ijhydene.2015.05.119
Journal Article
Methods and Concepts for Material Development
Please use the identifier: http://dx.doi.org/10.1016/j.ijhydene.2015.05.119 in citations.
A simple model of the hydrogen desorption kinetics of metal hydrides is formulated and solved analytically. The particle surface reaction is assumed to be a rate-controlling-step. Then a volumetric measurement of hydrogen desorption process is evaluated on an example of wet ball milled magnesium hydride, and can be applied generally for any metal hydride.The solution reproduces the shape of experimental curves for desorption process. In the case of surface-controlled kinetics, a volumetric measurement requires a special evaluation of results, predicted by the solution of the model. An improved evaluation of the volumetric measurement of hydrogen desorption from magnesium hydride powders using the model has been demonstrated.