Hydrothermal synthesis of 3D hierarchical porous CeO2 rugby-ball-like nanostructures with nanorods as building blocks
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- 作者：Xiaofei Niu ; Ming Li ; Baoming Hao…
- 刊名：Journal of Materials Science: Materials in Electronics
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：27
- 期：7
- 页码：6845-6848
- 全文大小：1,511 KB
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Optical and Electronic Materials
Characterization and Evaluation Materials - 出版者：Springer New York
- ISSN：1573-482X
- 卷排序：27
文摘
Rugby-ball-like CeO2 hierarchical porous structures have been successfully synthesized by a simple template-free hydrothermal method using CeCl3·7H2O as cerium, NH4HCO3 as precipitator and ethanediamine as surfactant. X-ray diffraction (XRD) inferred that the synthesized CeO2 microstructures exhibited a fluorite cubic structure. Moreover, the as-prepared CeO2 samples have a rugby-ball-like hierarchical porous structure assembled by numerous nanorods with a small diameter, and the oxygen vacancies and Ce3+ ions exist in the surface of samples. There is a red-shifting in the band gap of the material compared to bulk one, which is mainly attributed to the influences of the Ce3+ ions, oxygen vacancies and the morphology of the material.