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双模板制备CeO2
i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y 3 8 ( 2 0 1 3 ) 4 4 4 5 e4 4 5 5
Available online at
journal homepage: /locate/he
Dual-templating fabrication of three-dimensionally ordered
macroporous ceria with hierarchical pores and its use as
a support for enhanced catalytic performance of preferential
CO oxidation
Zhi Liu*, Yuan Yang, Junhua Mi, Xiuli Tan, Cong Lv
Institute of Chemistry for 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 study, several three-dimensionally ordered macroporous (3DOM) CeO2 having hi-
Received 6 October 2012 erarchical pore structure were successfully prepared via a dual ‘hard-soft’ templating
Received in revised form strategy using Ce(NO ) $6H O containing phenol-formaldehyde (PF) resol or/and sucrose as
3 3 2
31 December 2012 the ceria precursor. The resulting CeO2 samples were characterized by N2 adsorption-
Accepted 17 January 2013 desorption analysis, scanning electron microscopy, transmission electron microscopy
Available online 5 March 2013 and X-ray diffraction, which showed that the hierarchical 3DOM CeO2 possessed inter-
connected networks of the ordered macropore structures with large mesopores, and both
Keywords: the BET surface area and pore volume increased significantly compared with
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