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RESEARCH PRODUCT
X-ray powder diffraction study of monoclinic V4+-ZrO2 solid solutions obtained from gels
Francisco Jose TorresJosé María AmigóJavier Alarcónsubject
Rietveld refinementChemistryVanadiumchemistry.chemical_elementCrystal structureCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsInorganic ChemistryCrystallographyLattice constantPowder DiffractometerMaterials ChemistryCeramics and CompositesPhysical and Theoretical ChemistryPowder diffractionMonoclinic crystal systemSolid solutiondescription
Abstract Rietveld refinement of six monoclinic V x Zr 1− x O 2 solid solutions, with x =0, 0.01, 0.02, 0.05, 0.075 and 0.1, prepared by heating dried gel precursors at 1300°C in air atmosphere, has been characterized using X-ray powder diffractometer data. The present results confirm that crystal structure of these solid solutions contain V 4+ (Zr 4+ ) cations surrounded by seven oxygens, four at a distance between 2.13 and 2.28 A (referred as to O(2) in the tetrahedrally coordinated oxygens) and other three at a distance between 2.03 and 2.20 A (denoted as O(1) in the triangularly coordinated oxygens). The trends in the lattice parameter variation of V x Zr 1− x O 2 solid solutions specimens with the nominal vanadium amount are in accordance with previous results obtained by experiments measured using an internal standard.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-06-01 | Journal of Solid State Chemistry |