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Abstract
The high-pressure structural chemistry of zirconium phosphate, Zr(HPO4)2·H2O, was studied using in-situ high-pressure diffraction and synchrotron radiation. The layered phosphate was studied under both hydrostatic and non-hydrostatic conditions and Rietveld refinement carried out on the resulting diffraction patterns. It was found that under hydrostatic conditions no uptake of additional water molecules from the pressure-transmitting medium occurred, contrary to what had previously been observed with some zeolite materials and a layered titanium phosphate. Under hydrostatic conditions the sample remained crystalline up to 10GPa, but under non-hydrostatic conditions the sample amorphized between 7.3 and 9.5GPa. The calculated bulk modulus, K 0 = 15.2GPa, showed the material to be very compressible with the weak linkages in the structure of the type Zr - O - P.
Original language | English |
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Pages (from-to) | 510-516 |
Number of pages | 7 |
Journal | Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials |
Volume | 70 |
Issue number | 3 |
Early online date | 31 May 2014 |
DOIs | |
Publication status | Published - Jun 2014 |
Keywords
- equation of state
- high pressure
- layered phosphate
- Rietveld refinement
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Metals and Alloys
- Atomic and Molecular Physics, and Optics
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Dive into the research topics of 'In-situ high-pressure powder X-ray diffraction study of zirconium phosphate'. Together they form a unique fingerprint.Projects
- 1 Finished
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Novel biotechnology for removal of soluble radionuclides and possible potential reduction of terrorist impact
Macaskie, L. (Principal Investigator) & Hriljac, J. (Co-Investigator)
Engineering & Physical Science Research Council
1/01/06 → 30/06/09
Project: Research Councils