Hydrothermal Synthesis of Vanadium-Based Layered Compound with 1 nm Basal Spacing
| Autor: | Shigehiro Mori, Yoshikazu Kaneko, Junji Yamanaka |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Materials science
Scanning electron microscope Mechanical Engineering Analytical chemistry Vanadium chemistry.chemical_element Condensed Matter Physics Hydrothermal circulation Thermogravimetry Crystallography chemistry Mechanics of Materials Transmission electron microscopy Impurity Hydrothermal synthesis General Materials Science Vanadate |
| Zdroj: | MATERIALS TRANSACTIONS. 42:1854-1857 |
| ISSN: | 1347-5320 1345-9678 |
| DOI: | 10.2320/matertrans.42.1854 |
| Popis: | Vanadium-based layered compounds were synthesized from a reaction between ammonium vanadate and supercritical/non-supercritical water. The hydrothermal conditions were as follows: treatment temperature of 773 K and pressure of 30 to 100 MPa. We characterized specimens by scanning electron microscopy, energy dispersive X-ray spectroscopy (EDX), X-ray diffractometry, transmission electron microscopy and thermogravimetry. Then we determined the condition of repeatable synthesis of the layered compound with a 0.98 nm basal spacing. The compound included no impurity, at least at the sensitivity of EDX. The compound showed good stability up to 500 K. We infer the chemical formula of the compound to be V 2 O 5 .0.5H 2 O. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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