The Synthesis of Three-Dimensional CeO2 and Their Catalytic Activities for CO Oxidation
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This article reports a novel preparation of three-dimensional (3D) CeO2 originating from crystalline cerium formate by a surfactant-free route using H2O, ethanol and ethylene glycol as solvents. The sea urchin shaped 3D CeO2 gave rise to micro/nanocomposite structures with high BET surface area up to 234 m2 g−1. The 3D structure improved the reducibility of surface CeO2 due to the increased oxygen vacancy. Both 3D CeO2 and 5 wt% CuO loaded on 3D CeO2 exhibit high catalytic activities for CO conversion.
KeywordsCeO2 Three-dimension (3D) Micro/nanocomposite structure and CO oxidation
We thank the Important Project of National Natural Science Foundation of China (No. 20603016) and Liaoning Provincial Science & Technology Project of China (No. 20071074) for financial support of this research.
- 9.Chen HL, Zhu HY, Wang H, Dong L, Zhu JJJ (2006) Nanosci Nanotech 6:157Google Scholar