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Molecular Vibrations as the Origin of Solid State Effects in Borohydrides

Published online by Cambridge University Press:  31 January 2011

Andreas Borgschulte ,
Robin Gremaud ,
Florian Buchter ,
Zbigniew Lodziana ,
Andreas Züttel ,
Timmy Ramirez-Cuesta ,
Miriam Bardaji ,
Wiebke Lohstroh  and
Max Fichtner
Andreas Borgschulte
Affiliation:
andreas.borgschulte@empa.ch, Empa, Laboratory Hydrogen & Energy, Duebendorf, Switzerland
Robin Gremaud
Affiliation:
robin.gremaud@empa.ch, Empa, Laboratory Hydrogen & Energy, Duebendorf, Switzerland
Florian Buchter
Affiliation:
florian.buchter@empa.ch, Empa, Laboratory Hydrogen & Energy, Duebendorf, Switzerland
Zbigniew Lodziana
Affiliation:
zbigniew.lodziana@empa.ch, Empa, Laboratory Hydrogen & Energy, Duebendorf, Switzerland
Andreas Züttel
Affiliation:
andreas.zuettel@empa.ch, Empa, Laboratory Hydrogen & Energy, Duebendorf, Switzerland
Timmy Ramirez-Cuesta
Affiliation:
timmy.ramirez-cuesta@stfc.ac.uk, Rutherford Appleton Laboratory, ISIS Facility, Didcot, United Kingdom
Miriam Bardaji
Affiliation:
elisa.gil@int.fzk.de, Karlsruhe Institute of Technology, Institute of Nanotechnology, Karlsruhe, Germany
Wiebke Lohstroh
Affiliation:
wiebke.lohstroh@kit.edu, Karlsruhe Institute of Technology, Institute of Nanotechnology, Karlsruhe, Germany
Max Fichtner
Affiliation:
m.fichtner@kit.edu, Karlsruhe Institute of Technology, Institute of Nanotechnology, Karlsruhe, Germany
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Abstract

In this proceeding, we discuss measurements of the vibrational properties of hydrides using inelastic neutron scattering (INS) and the impact of the vibrational modes on the thermodynamic properties. We compare the heat capacity of PdH0.63 and LiBH4 as measured calorimetrically to that derived form INS spectra. We show that the vibrational properties of Ca(BH4)2 depend on the specific phase and hitherto determine their stability.

Keywords

hydrogenationneutron scatteringH
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1216: Symposium W – Hydrogen Storage Materials , 2009 , 1216-W07-09
Copyright
Copyright © Materials Research Society 2010

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