Complex inorganic structures from powder diffraction:case of tetrahydroborates of light metals
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Radovan Černý
Abstract
Powder diffraction plays a central role in the characterization of light metal tetrahydroborates (borohydrides), novel boron based hydrides recognized as a potential solution for hydrogen storage. Numerous novel BH–4 based materials have been investigated during the past few years and this class of materials has a fascinating structural chemistry. We review the powder diffraction methods, problems and solutions which are specific for these weakly diffracting and badly crystallized materials. Examples of highlights and pitfalls of the powder diffraction are given. Complex structures with as many as 55 independent atoms were fully characterized, and P-T phase diagrams accessible from in-situ powder diffraction enable understanding of these ionic crystals with important directional bonding.
© by Oldenbourg Wissenschaftsverlag, Genève, Germany
Articles in the same Issue
- Preface: Modern Rietveld Analysis
- Preface: Modern Rietveld Analysis
- Obtaining models suitable for Rietveld refinement: the EXPO2011 techniques
- Complex inorganic structures from powder diffraction:case of tetrahydroborates of light metals
- Recent developments targeting new and experienced users in EXPGUI, an open source Rietveld analysis interface
- Testing different methods for estimating uncertainties on Rietveld refined parameters using SrRietveld
- Understanding anisotropic microstrain broadening in Rietveld refinement
- On the modelling of the powder pattern from a nanocrystalline material
- Rietveld refinement of energy-dispersive synchrotron measurements
- Description and survey of methodologies for the determination of amorphous content via X-ray powder diffraction
- A case study of parameterized Rietveld refinement:The structural phase transition of CuInSe2
Articles in the same Issue
- Preface: Modern Rietveld Analysis
- Preface: Modern Rietveld Analysis
- Obtaining models suitable for Rietveld refinement: the EXPO2011 techniques
- Complex inorganic structures from powder diffraction:case of tetrahydroborates of light metals
- Recent developments targeting new and experienced users in EXPGUI, an open source Rietveld analysis interface
- Testing different methods for estimating uncertainties on Rietveld refined parameters using SrRietveld
- Understanding anisotropic microstrain broadening in Rietveld refinement
- On the modelling of the powder pattern from a nanocrystalline material
- Rietveld refinement of energy-dispersive synchrotron measurements
- Description and survey of methodologies for the determination of amorphous content via X-ray powder diffraction
- A case study of parameterized Rietveld refinement:The structural phase transition of CuInSe2
