Effect of Templates on Catalytic Activity of Ordered Mesoporous Ceria for CO Oxidation

Abstract:

Mesoporous ceria catalysts were prepared by nanocasting of a mesoporous carbon and KIT-6. The prepared mesoporous ceria catalysts were used to catalyze CO oxidation. The various characterization techniques were employed to study the relationship between catalyst nature and catalytic properties. The results indicate that ceria prepared by using mesoporous carbon as template possess an ordered mesoporous architecture and exhibit much better catalytic activity compared with those prepared by using KIT-6 as template. The residual SiO₂ from KIT-6 was demonstrated to be the main reason for the much worse catalytic activities by the characterization results of X-ray Fluorescence Spectrometer and FTIR spectra.

• Periodical: Advanced Materials Research (Volumes 1033-1034)
• Pages: 95-98
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1033-1034.95
• Online since: October 2014
• Authors: Peng Yang, Shi Yu Zhou, Jia Heng Lei*
• Keywords: CO Oxidation, Hard Template Method, Mesoporous Ceria

References

[1] Zhao Z, Jin R, Bao T, et al. Applied Catalysis B: Environmental, 2011(110): 154-163.

[2] Di Monte R, Kašpar J. Journal of Materials Chemistry, 2005, 15(6): 633-648.

[3] Aneggi E, Divins N J, de Leitenburg C, et al. Journal of Catalysis, 2014, 312: 191-194.

[4] Yuan Q, Liu Q, Song W G, et al. Journal of the American Chemical Society, 2007, 129(21): 6698-6699.

[5] Abdollahzadeh-Ghom S, Zamani C, Andreu T, et al. Applied Catalysis B: Environmental, 2011(108-109): 32-38.

DOI: 10.1016/j.apcatb.2011.07.038

[6] Ying F, Wang S, Au C T, et al. Microporous and Mesoporous Materials, 2011, 142(1): 308-315.

[7] Laha S C, Ryoo R. Chemical Communications, 2003(17): 2138-2139.

[8] Liu D, Lei J H, Guo L P, et al. Carbon, 2012, 50(2): 476-487.

[9] Liu B, Baker R T. J. Mater. Chem., 2008, 18(43): 5200-5207.

[10] Dai Q, Wang X, Chen G, et al. Microporous and mesoporous materials, 2007, 100(1): 268-275.