Fabrication of Monodisperse CeO<sub>2</sub> Hollow Spheres Assembled by Nano-octahedra
Zhijie Yang (1420261)Dongqing Han (2327413)Donglin Ma (1611901)Hui Liang (503201)Ling Liu (143030)Yanzhao Yang (1465582)
Abstract
A simple hydrothermal method has been employed to fabricate monodisperse CeO<sub>2</sub> hollow spheres assembled by nano-octahedra. Results revealed that the as-obtained CeO<sub>2</sub> hollow spheres were assembled by nano-octahedra with an average edge length of ca. 20 nm. A possible crystal growth and hollowing mechanism was suggested based on the detailed experiment. The CO oxidation properties were investigated, and the novel structured CeO<sub>2</sub> hollow spheres exhibited a higher catalytic properties compared to the commercial CeO<sub>2</sub> powders.
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