Solving crystal structures of metal and chemical hydrides
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Radovan Cerný
Abstract
The methods of structural characterization of metal and chemical hydrides are reviewed. The existing difficulties and problems are outlined and possible solutions presented. It is shown that powder diffraction, and especially the Direct Space Method, is essential component of hydride research. Crystal structures containing as many as 55 independent atoms (including hydrogen) have been fully characterized using powder diffraction. This is of great importance, because rapid collection of powder data thanks to modern synchrotron and neutron time-of-flight sources opens the possibility for fast in-situ studies, mapping of phase transitions induced by the temperature, pressure, hydrogen content, and chemical reactions. The progress in structural characterization of hydrides goes hand in hand with the progress in the powder diffraction methodology.
© by Oldenbourg Wissenschaftsverlag, Genève 4, Germany
Articles in the same Issue
- Editorial: Hydrogen Storage Materials
- Solving crystal structures of metal and chemical hydrides
- Pair Distribution Functions and Reverse Monte Carlo modelling of disordered metal hydrides
- Coexistence of hydrogen and polyanions in multinary main group element hydrides
- Structures of aluminium-based light weight hydrides
- Light metal borohydrides: crystal structures and beyond
- The structural properties of amides and imides as hydrogen storage materials
- Structural transitions induced by hydrogen absorption in metallic hydrides
- Crystal chemistry and metal-hydrogen bonding in anisotropic and interstitial hydrides of intermetallics of rare earth (R) and transition metals (T), RT3 and R2T7
- Hydrogen induced site depopulation in the LaMgNi4-hydrogen system
- The nature of deuterium arrangements in YD3 and other rare-earth trideuterides
- The crystal structure of α-MgD2 under high pressure by neutron powder diffraction
Articles in the same Issue
- Editorial: Hydrogen Storage Materials
- Solving crystal structures of metal and chemical hydrides
- Pair Distribution Functions and Reverse Monte Carlo modelling of disordered metal hydrides
- Coexistence of hydrogen and polyanions in multinary main group element hydrides
- Structures of aluminium-based light weight hydrides
- Light metal borohydrides: crystal structures and beyond
- The structural properties of amides and imides as hydrogen storage materials
- Structural transitions induced by hydrogen absorption in metallic hydrides
- Crystal chemistry and metal-hydrogen bonding in anisotropic and interstitial hydrides of intermetallics of rare earth (R) and transition metals (T), RT3 and R2T7
- Hydrogen induced site depopulation in the LaMgNi4-hydrogen system
- The nature of deuterium arrangements in YD3 and other rare-earth trideuterides
- The crystal structure of α-MgD2 under high pressure by neutron powder diffraction
