Hydrothermal Synthesis of Lithium Zinc Phosphates: Structural Investigation of Twinned α-Li4Zn(PO4)2 and a High Temperature Polymorph β-Li4Zn(PO4)2
| Autor: | A. Nørlund Christensen, Torben R. Jensen, Jonathan C. Hanson, Rita G. Hazell |
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| Rok vydání: | 2002 |
| Předmět: |
chemistry.chemical_element
Zinc Crystal structure Atmospheric temperature range Condensed Matter Physics Thermal expansion Electronic Optical and Magnetic Materials Inorganic Chemistry Crystallography chemistry Materials Chemistry Ceramics and Composites Hydrothermal synthesis Lithium Physical and Theoretical Chemistry Thermal analysis Powder diffraction |
| Zdroj: | Journal of Solid State Chemistry. 166:341-351 |
| ISSN: | 0022-4596 |
| Popis: | The system LiOH:Zn(NO3)2:H3PO4:H2O was investigated using hydrothermal synthesis techniques in the temperature range 20°C 3σ(Fo2) (λ=0.9346(1) A). The cations are tetrahedrally coordinated to oxygen, and the structure can be viewed as layers of regular ZnO4 and PO4 tetrahedra interconnected by more distorted LiO4 tetrahedra. Thermal investigation using in situ powder X-ray diffraction in the temperature range 20°C 1 , a=5.173(3) A, b=7.97(1) A, c=9.92(1) A, α=80.9(1)°, β=126.8(1)° and γ=106.0(1)°, V=319.8(7) A3 and Z=2. The linear thermal expansion of α- and β-Li4Zn(PO4)2 are extracted from powder diffraction data in the temperature range RT to 900°C. |
| Databáze: | OpenAIRE |
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