Cerium carbonate hydroxide and ceria micro/nanostructures: Synthesis, characterization and electrochemical properties of CeCO3OH
| Autor: | Fatma Hrizi, Hassouna Dhaouadi, Fathi Touati |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Cerium oxide
Materials science Process Chemistry and Technology Inorganic chemistry Thermal decomposition chemistry.chemical_element Microstructure Surfaces Coatings and Films Electronic Optical and Magnetic Materials Cerium nitrate Cerium chemistry.chemical_compound chemistry Materials Chemistry Ceramics and Composites Hydroxide Carbonate Lithium Nuclear chemistry |
| Zdroj: | Ceramics International. 40:25-30 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2013.05.098 |
| Popis: | Cerium hydroxide carbonate (CeCO 3 OH) nano and microcrystals were synthesized by the hydrothermal method at 180 °C using cerium nitrate (Ce(NO 3 ) 3 ·6H 2 O) as the cerium source, urea as both an alkaline and carbonate source with cetyltrimetylammonium bromide (CTAB) as the directing agent. By varying many of the experimental parameters such as the molar ratio CTAB/Ce(NO 3 ) 3 ·6H 2 O [CTAB/Ce], cerium hydroxide carbonate nanomaterials with different morphologies were obtained. However, cerium oxide (CeO 2 ) micro/nanostructure is obtained through the thermal decomposition of CeCO 3 OH at 300 °C for 1 h. X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and thermal analyses (TG-DTA) were the techniques used to study the resulting products. The CeCO 3 OH microstructure exhibits an excellent electrochemical reversibility, which is an important feature with many applications such as in lithium ion batteries. |
| Databáze: | OpenAIRE |
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