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Characterization of Hydrogen Storage Materials and Systems with Photons and Neutrons
Author(s) -
Pranzas P. Klaus,
Bösenberg Ulrike,
Karimi Fahim,
Münning Martin,
Metz Oliver,
Minella Christian Bonatto,
Schmitz HeinzWerner,
Beckmann Felix,
Vainio Ulla,
Zajac Dariusz,
Welter Edmund,
Jensen Torben R.,
Cerenius Yngve,
Bormann Rüdiger,
Klassen Thomas,
Dornheim Martin,
Schreyer Andreas
Publication year - 2011
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201000298
Subject(s) - hydrogen storage , materials science , hydride , neutron diffraction , hydrogen , neutron , scattering , neutron scattering , synchrotron radiation , characterization (materials science) , absorption (acoustics) , x ray absorption spectroscopy , advanced photon source , spectroscopy , diffraction , absorption spectroscopy , metal , optics , nanotechnology , nuclear physics , composite material , alloy , metallurgy , chemistry , particle accelerator , physics , organic chemistry , beam (structure) , quantum mechanics
Complex hydrides are very promising candidates for future light‐weight solid state hydrogen storage materials. The present work illustrates detailed characterization of such novel hydride materials on different size scales by the use of synchrotron radiation and neutrons. The comprehensive analysis of such data leads to a deep understanding of the ongoing processes and mechanisms. The reaction pathways during hydrogen desorption and absorption are identified by in situ X‐ray diffraction (XRD). Function and size of additive phases are estimated using X‐ray absorption spectroscopy (XAS) and anomalous small‐angle X‐ray scattering (ASAXS). The structure of the metal hydride matrix is characterized using (ultra) small‐angle neutron scattering (SANS/USANS). The hydrogen distribution in tanks filled with metal hydride material is studied with neutron computerized tomography (NCT). The results obtained by the different analysis methods are summarized in a final structural model. The complementary information obtained by these different methods is essential for the understanding of the various sorption processes in light metal hydrides and hydrogen storage tanks.