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Title: High pressure and temperature equation of state and spectroscopic study of CeO 2

Journal Article · · Journal of Physics. Condensed Matter

One of the most widely used x-ray standards and a highly applied component of catalysis systems, CeO2 has been studied for the purpose of better understanding its equation of state and electronic properties. Diamond anvil cells have been used to extend the equation of state for this material to 130 GPa and explore the electronic behavior with applied load. From the x-ray diffraction studies, it has been determined that the high pressure phase transition extends from approximately 35 to 75 GPa at ambient temperature. Elevation of temperature is found to decrease the initiation pressure for this transition, with multiple distinct temperature regions which indicate structural related anomalies. In addition, hydrostatic and non-hydrostatic effects are compared and exhibit a drastic difference in bulk moduli. The electronic results indicate a change in the scattering environment of the cerium atom, associated with the high pressure phase transition. Overall, these results present the first megabar pressure study and the first high pressure and temperature study of ceria. Additionally, this shows the first combined study of the K and LIII edges of this material to 33 GPa.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Carnegie Inst. of Science, Washington, DC (United States). Geophysical Lab.
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
Grant/Contract Number:
AC02-06CH11357; AC52-06NA25396; FG02-94ER14466; FG02-99ER45775; NA0001974; EAR1128799; EAR1157758; EAR 11-57758; EAR-1128799; NA0002006
OSTI ID:
1242313
Alternate ID(s):
OSTI ID: 1242314; OSTI ID: 1247314; OSTI ID: 1379176
Report Number(s):
LA-UR-15-25295
Journal Information:
Journal of Physics. Condensed Matter, Journal Name: Journal of Physics. Condensed Matter Vol. 28 Journal Issue: 15; ISSN 0953-8984
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (31)

Investigation of thermodynamic properties of cerium dioxide by statistical moment method journal April 2006
Raman study of CeO 2 : Second-order scattering, lattice dynamics, and particle-size effects journal July 1993
Many-body calculation for high energy spectra of insulating RE compounds journal February 1985
High-pressure x-ray diffraction study of CeO 2 to 70 GPa and pressure-induced phase transformation from the fluorite structure journal October 1988
Strength and equation of state of fluorite phase CeO 2 under high pressure journal July 2012
Ceria in automotive exhaust catalysts I. Oxygen storage journal April 1984
Effective hydrostatic limits of pressure media for high-pressure crystallographic studies journal January 2007
Pressure-induced transition in titanium metal a systematic study of the effects of uniaxial stress journal January 2005
CeO 2 : An alternative insulator material for superconducting field effect devices journal April 1994
Resonant inelastic x-ray scattering at the Ce L 3 edge of CePO 4 and CeO 2 : Implications for the valence of CeO 2 and related phenomena journal July 2005
Crystal structure and the structural disorder of ceria from 40 to 1497 °C journal January 2006
HPCAT: an integrated high-pressure synchrotron facility at the Advanced Photon Source journal September 2008
Finite Elastic Strain of Cubic Crystals journal June 1947
New developments in micro-X-ray diffraction and X-ray absorption spectroscopy for high-pressure research at 16-BM-D at the Advanced Photon Source journal July 2015
Powder diffraction analysis of cerium dioxide at high pressure journal June 1993
Redox response of actinide materials to highly ionizing radiation journal January 2015
Specific intermediate-valence state of insulating 4 f compounds detected by L 3 x-ray absorption journal January 1987
Catalytic Properties of Ceria and CeO 2 -Containing Materials journal November 1996
Bulk modulus of CeO2 and PrO2—An experimental and theoretical study journal September 2005
Hydrostatic limits in liquids and solids to 100 kbar journal December 1973
Equations of state of MgO, Au, Pt, NaCl-B1, and NaCl-B2: Internally consistent high-temperature pressure scales journal December 2007
Direct study of the f-electron configuration in lanthanide systems journal January 2011
Experimental constraints on the phase diagram of elemental zirconium journal July 2005
Theory of core photoabsorption spectra in CeO2 journal May 1985
Comment on “High-pressure x-ray diffraction study of YBO 3 /Eu 3+ , GdBO 3 , and EuBO 3 : Pressure-induced amorphization in GdBO 3 ” [J. Appl. Phys. 115 , 043507 (2014)] journal June 2014
A new method of directly determining the core–hole effect in the Ce L3 XAS of mixed valence Ce compounds—An application of resonant X-ray emission spectroscopy journal April 2011
Pressure-induced changes in L III x-ray-absorption near-edge structure of Ce O 2 and Ce F 4 : Relevance to 4 f -electronic structure journal November 1988
Effects of interstitial impurities on the high pressure martensitic α to ω structural transformation and grain growth in zirconium journal March 2011
Theoretical study of CeO2 and Ce2O3 using a screened hybrid density functional journal July 2006
High-pressure Raman study of CeO 2 to 35 GPa and pressure-induced phase transformation from the fluorite structure journal March 1988
Refinement of the ruby luminescence pressure scale journal February 2003

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