%0 Journal Article %A Cui, Rongrong %A Lu, Wencong %A Zhang, Liangmiao %A Yue, Baohua %A Shen, Shanshan %D 2009 %T Template-Free Synthesis and Self-Assembly of CeO2 Nanospheres Fabricated with Foursquare Nanoflakes %U https://acs.figshare.com/articles/journal_contribution/Template_Free_Synthesis_and_Self_Assembly_of_CeO_sub_2_sub_Nanospheres_Fabricated_with_Foursquare_Nanoflakes/2803519 %R 10.1021/jp9065168.s001 %2 https://ndownloader.figshare.com/files/4497928 %K CeO 2 Nanospheres Fabricated %K CeO 2 nanospheres %K HRTEM %K nanoflake %K nanostructures formation %K hydrothermal reaction %K transmission electron microscopy %K CeO 2 architecture %K BET surface %K TEM %K CO oxidation %X Large-scale CeO2 spherical architectures composed of numerous nanoflakes have been controllably prepared through a simple hydrothermal reaction without any template. The products were characterized with X-ray diffraction, nitrogen adsorption−desorption experiments, transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM). It was found that the CeO2 architecture ca. 100−230 nm in diameter was made up of many nanoflakes with a BET surface of 24 m2/g. The possible mechanism for the nanostructures formation was discussed. The catalytic performance of CeO2 nanospheres and the direct-depositing CeO2 nanoparticles in CO oxidation were also tested, and the catalytic results were compared and explained by analyzing the exposed planes of the two. %I ACS Publications