One-Pot, Low-Temperature Preparation of Pyrochlore-Like Na2Ta2O6 Nanocrystals by Solvothermal Synthesis
| Autor: | Lin Yi, Jian Gao, Hai Feng Yuan, Qing Song Jiang, Lu Rong Ding |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Diethanolamine
Materials science Morphology (linguistics) Mechanical Engineering Inorganic chemistry Solvothermal synthesis Pyrochlore 02 engineering and technology engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Crystallinity chemistry.chemical_compound chemistry Nanocrystal Mechanics of Materials Sodium hydroxide Transmission electron microscopy engineering General Materials Science 0210 nano-technology Nuclear chemistry |
| Zdroj: | Key Engineering Materials. 703:267-272 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.703.267 |
| Popis: | In this paper, pyrochlore-like Na2Ta2O6 nanocrystals have been successfully synthesized in mixed solvents (water-ethanol) by a single-step and low-temperature solvothermal method. During the synthesis process, tantalum chloride and sodium hydroxide are used as starting materials; diethanolamine is acted as a stabilizer. The influence of alkaline concentration, reaction temperature and time on the crystallinity and morphology of Na2Ta2O6 nanocrystals is investigated in detail. The samples are characterized by X-ray diffraction and transmission electron microscope. The results show that the pure-phase pyrochlore-like Na2Ta2O6 nanocrystals can be formed with 10.5 mmol sodium hydroxide at 353K for 12 h. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|