Facile hydrothermal synthesis and optical properties of flower-like CeO2 composed of numerous porous nanorods
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- 作者：Bangfeng Zong
- 刊名：Journal of Materials Science: Materials in Electronics
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：28
- 期：3
- 页码：2458-2461
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Optical and Electronic Materials; Characterization and Evaluation of Materials;
- 出版者：Springer US
- ISSN：1573-482X
- 卷排序：28
文摘
Flower-like CeO2 hierarchical structures have been successfully synthesized by a facile template-free hydrothermal method using ethanol/water mixtures as solvent. X-ray diffraction shown that the synthesized flower-like CeO2 nanostructures exhibited a fluorite cubic structure. It was found that the flower-like CeO2 hierarchical structures with a diameter of 2–5 µm are composed of numerous porous nanorods as the petals with an average diameter of about 15 nm, which connect at one end and diverge at the other end to form an open hierarchical architecture. The synthesized CeO2 samples show excellent room temperature optical properties, which is likely associated with Ce3+ ions and oxygen vacancies in the samples as supported by the XPS and Raman scattering data.