Characterization of nanoscale oxide and oxyhydroxide powders using EXAFS spectroscopy

Conference · Tue Jun 01 04:00:00 EDT 1993

OSTI ID:6206152

Darab, J G; Linehan, J C; Matson, D W ^[1]; Ma, Y ^[2]

---

1. Pacific Northwest Lab., Richland, WA (United States)
2. Washington Univ., Seattle, WA (United States). Dept. of Physics

Extended x-ray absorption fine structure (EXAFS) spectroscopy has been used to determine the structural environment local to iron(HI) and zircorium(IV) cations in respectively, nanoscale iron oxyhydroxide and nanoscale zirconium oxide powders. The iron oxyhydroxide powder, produced by the modified reverse micelle (MRM) technology, was found to have a short-range structure most similar to that of goethite ([alpha]-FeOOH). The short-range structure of the zirconium oxide powder, produced using the rapid thermal decomposition of solutes (RTDS) technology, was found to be a mixture of monoclinic zirconia and cubic zirconia environments.

• Research Organization: Pacific Northwest Lab., Richland, WA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6206152
• Report Number(s): PNL-SA-21667; CONF-930405--23; ON: DE93015683
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ABSORPTION SPECTROSCOPY
CHALCOGENIDES
FINE STRUCTURE
HYDROGEN COMPOUNDS
HYDROXIDES
IRON COMPOUNDS
IRON HYDROXIDES
IRON OXIDES
OXIDES
OXYGEN COMPOUNDS
POWDERS
SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
TRANSITION ELEMENT COMPOUNDS
X-RAY SPECTROSCOPY
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES