Hydrogen Storage in Porous Materials and Magnesium Hydrides

Hydrogen Storage in Porous Materials and Magnesium Hydrides

Grzech, A.

Mulder, F.M. (promotor)

Applied Sciences

Radiation Science & Technology

2013-02-26

In this thesis representatives of two different types of materials for potential hydrogen storage application are presented. Usage of either nanoporous materials or metal hydrides has both operational advantages and disadvantages. A main objective of this thesis is to characterize the hydrogen storage mechanism of selected Metal-Organic Framework (MOF) materials. Such knowledge may provide information in which direction improvements of the materials may be possible. Detailed analysis of the hydrogen storage mechanism was performed using experimental techniques like powder X-ray diffraction, FT-IR, TEM, hydrogen sorption experiments and solid state NMR. Apart from the hydrogen sorption characteristics also knowledge about the stability of the frameworks themselves was obtained. Additional insight on the MOFs structure and on hydrogen sorption kinetics and thermodynamic factors was gained from modeling methods which includes Density Functional Theory and force field calculations. Apart from that new information on the microstructure of the MgH2-TiF3 complex were obtained and subsequently the models of the dehydrogenated and re-hydrogenated structures were proposed.

hydrogen storage
metal hydrides
MOFs

https://doi.org/10.4233/uuid:27aa09b8-093e-4670-8837-ad1ffd498ef2

Uitgeverij BOXPress, ‘s-Hertogenbosch

9789088915741

Institutional Repository

doctoral thesis

(c) 2013 Grzech, A.