三维有序介孔CeO2.pdf

Applied Surface Science 283 (2013) 290–296 Contents lists available at SciVerse ScienceDirect Applied Surface Science j o u r n a l h o m e pa g e : w w w. elsev /locate/aps usc Sucrose-assisted synthesis of three-dimensionally ordered macroporous CeO2 and its use as a support for promotional catalytic performance of CO oxidation Zhi Liu ∗ , Xiuli Tan, Cong Lv Institute of Chemistryfor Functionalized Materials, Faculty of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, PR China a r t i c l e i n f o a b s t r a c t Article history: In this work, several three-dimensionally ordered macroporous (3DOM) CeO2 having hierarchical pore Received 18 April 2013 structure were successfully prepared via a dual ‘hard-soft’ templating strategy using Ce(NO ) ·6H O 3 3 2 Received in revised form 18 June 2013 containing sucrose as the ceria precursor. The resulting CeO2 samples were characterized by N2 Accepted 19 June 2013 adsorption–desorption analysis, scanning electron microscopy, and transmission electron microscopy, Available online 26 June 2013 which showed that the hierarchical 3DOM CeO2 possessed interconnected networks of the ordered macropore structures with large mesopores, and both the BET sur