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X-ray Powder Diffraction in Conservation Science: Towards Routine Crystal Structure Determination of Corrosion Products on Heritage Art Objects
Published on: June 8, 2016
Applications of combined EXAFS and powder diffraction analysis in solid state chemistry
1Department of Chemistry, University of Southampton, England. N.Binsted@dl.ac.uk
Journal of Synchrotron Radiation
|August 22, 2001
Summary
This study reviews combined Extended X-ray Absorption Fine Structure (EXAFS) and neutron/X-ray diffraction analysis. New provisional results for CoAl2O4, La(6.4)Ca(1.6)Cu6Ni2O20, and Pr(0.5)Sr(0.5)FeO(2.75) are presented.
Area of Science:
- Materials Science
- Solid-State Chemistry
- Crystallography
Background:
- Combined EXAFS and diffraction techniques offer powerful insights into material structure.
- Accurate structural determination is crucial for understanding material properties and applications.
Purpose of the Study:
- To review recent applications of combined EXAFS and powder neutron/X-ray diffraction.
- To present provisional structural results for three novel compounds.
- To suggest criteria for successful structural refinements using these methods.
Main Methods:
- Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy.
- Powder neutron diffraction.
- X-ray diffraction (XRD).
Main Results:
- Review of successful combined EXAFS/diffraction analyses.
- Provisional structural data for CoAl2O4.
- Provisional structural data for La(6.4)Ca(1.6)Cu6Ni2O20.
- Provisional structural data for Pr(0.5)Sr(0.5)FeO(2.75).
Conclusions:
- Combined EXAFS and diffraction are effective for complex material structural analysis.
- The presented criteria can guide future structural refinement studies.
- The new data contribute to the understanding of the investigated oxide materials.
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