Hydrogen, future outlook

European funded research on Hydrogen and Fuel Cells review assessment future outlook. 2008, ISBN 978-92-79-06940-6 - website http //ec.europa.eu/research/energv/pdf/h2fc review days en.ndf... 

After raising a selection of topical issues in this field and briefly introducing some spectroscopic and numerical techniques to probe the hydrogen bond dynamics, recent results for alcohol clusters are presented in order of increasing complexity. They are followed by some general conclusions and an outlook on future research goals. 

This model has been used for the description of Arrhenius curves of H-transfers as described in more detail in Chapter 6. The next two chapters show applications of these symmetry effects. First the para-hydrogen induced polarization (PHIP) experiments are discussed. There the symmetry induced nuclear spin polarization creates very unconventional NMR lineshape patterns, which are of high diagnostic value for catalytic studies. Then in Section 21.4 symmetry effects on NMR line-shapes and relaxation data of intramolecular hydrogen exchange reactions are discussed and examples from iH-liquid state and H-solid state NMR are presented and compared to INS spectra. The last section gives an outlook on possible future developments in the field. 

This chapter will first explain the theory of destabilisation and then move on to look at specific examples starting with the destabilisation of complex hydrides with separate sections devoted to different classes of destabilisation agents first metal hydrides, then non-hydride systems (where either an element or alloy which does not hydride or an inorganic salt is added as the destabilisation agent) and finally attempts to use another complex hydride to form a destabilised multicomponent system. The penultimate section summarises the work reported on other multicomponent hydrogen storage systems, predominantly the destabilisation of binary hydrides by other elements, and the chapter is concluded with an outlook of potential future research. 

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