Controlled Synthesis of CeO2 Flower-Like and Well-Aligned Nanorod Hierarchical Architectures by a Phosphate-Assisted Hydrothermal Route

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• 作者：Ranbo Yu ; Lai Yan ; Peng Zheng ; Jun Chen ; Xianran Xing
• 刊名：Journal of Physical Chemistry C
• 出版年：2008
• 出版时间：December 18, 2008
• 年：2008
• 卷：112
• 期：50
• 页码：19896-19900
• 全文大小：403K
• 年卷期：v.112,no.50(December 18, 2008)
• ISSN：1932-7455

文摘

Large-scale CeO₂ hierarchical architectures composed of well-aligned nanorods were controllably prepared through a simple Na₃PO₄ assisted hydrothermal reaction without any templates. The products were characterized with X-ray diffraction, field-emission scanning electron microscopy, and high-resolution transmission electron microscopy. It was found that the CeO₂ architectures are in flower-like and vertically aligned nanorod morphologies and composed of numerous fluorite cubic single-crystalline nanorods of 20−40 nm in diameter and lengths of up to several micrometers. The possible mechanism for the nanostructures formation was discussed.