Synthesis and Catalytic Performance of Mesoporous Material by Twostep Crystallization

doi:10.3724/SP.J.1077.2010.00272

Abstract

Abstract: A mesoporous material was synthesized by using the precursor of MCM22 zeolite through a twostep synthesis route, and characterized by XRD, N2 physical adsorptiondesorption, TEM, 27Al MAS NMR, IR spectra of pyridine adsorbed methods and so on. It was found that the synthesized sample was not a mixture of microporous zeolite and mesoporous material but a new mesoporous molecular sieve with strong acid sites and good thermal stability. The acid catalytic activity for macromolecules was evaluated and compared with conventional mesoporous material MCM-41 through the cracking reaction of cumene and alkylation reaction of benzene with 1dodecen. The results show that the conversions of cumene cracking at 350℃ over the new mesoporous material and MCM-41 are 68.98% and 48.80%, respectively. For the alkylation reaction of benzene with 1dodecen at 210℃, the conversions of 1dodecen over the new mesoporous materials and MCM-41 are around 95.20% and 86.89%, respectively. The selectivities of linear alkylbenzene over the new mesoporous materials and MCM-41 are around 88.11% and 90.06%, respectively. The results show that the catalytic property of the new mesoporous materials for macromolecules is superior to that of MCM-41.

Key words: mesoporous material, two-step crystallization, synthesis, catalytic performance

CLC Number:

O643

LIU Wei-Qiao,SHANG Tong-Ming,LI Gong,WU Fei-Ke,TONG Hui-Juan,SUN Yu-Han. Synthesis and Catalytic Performance of Mesoporous Material by Twostep Crystallization[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2010.00272.

References

［1］Kresge C T, Leonowicz M E, Roth W J, et al. Ordered mesoporous molecular sieves synthesized by a liquid-crystal template mechanism. Nature, 1992, 359(22): 710-712.

［2］Beck J S, Vartuli J C, Roth W J, et al. A new family of mesoporous molecular sieves prepared with liquid crystal templates. J. Am. Chem. Soc., 1992, 114(27):10834-10843.

［3］Zhao D Y, Feng J L, Huo Q S, et al. Triblock copolymer syntheses of mesoporous silica with periodic 50 to 300 angstrom pores. Science, 1998, 279(23):548-552.

[4]Wang J Q, Yu N Y, Zheng A, et al. Mesoporous MSU materials functionalized with sulfonic group: A multinuclear NMR and theoretical calculation study. Microporous and Mesoporous Materials, 2006, 89(1/2/3):219-226.

［5］万克树，刘茜，张存满 (WAN Ke-Shu, et al). 热处理ZSM-5 制备微孔介孔双孔分子筛. 无机材料学报(Journal of Inorganic Materials), 2003, 18(5): 1097-1101.

［6］Zhang C M, Liu Q, Xu Z, et al. Synthesis and characterization of composite molecular sieves with mesoporous and microporous structure from ZSM5 zeolites by heat treatment. Microporous and Mesoporous Materials, 2003, 62(3): 157-163.

［7］Liu Y, Zhang W, Pinnavaia T J. Steam-stable MSU-S aluminosilicate mesostructures assembled from zeolite ZSM-5 and zeolite beta seeds. Angew. Chem. Int. Ed., 2001, 40(7):1255-1258.

［8］Zhang Z T, Han Y, Xiao F S, et al. Mesoporous aluminosilicates with ordered hexagonal structure, strong acidity, and extraordinary hydrothermal stability at high temperatures. J. Am. Chem. Soc., 2001, 123(21):5014-5021.

［9］Li G, Kan Q B, Wu T H, et al. Synthesis of cubic mesoporous aluminosilicates with enhanced acidity. Studies in Surface Science and Catalysis, 2003, 146: 149-152.

［10］Egeblad K, Kustova M, Klitgaard S K, et al. Mesoporous zeolite and zeotype single crystals synthesized in fluoride media. Microporous and Mesoporous Materials, 2007, 101(1/2/3):214-223.

［11］Sakthivel A, Huang S J, Chen W H, et al. Replication of mesoporous aluminosilicate molecular sieves (RMMs) with zeolite framework from mesoporous carbons (CMKs). Chem. Mater., 2004, 16(16):3168-3175.

［12］Huang L, Guo P W, Deng Z X, et al. Investigation of synthesizing MCM-41/ZSM-5 composites. Phys. Chem. B, 2000, 104(13): 2817-2823．

［13］Prokesova P, Mintova S, Cejka J. Preparation of nanosized micro/mesoporous composites via simultaneous synthesis of Beta/MCM-48 phases. Mieroporous and Mesoporous Materials, 2003, 64(1/2/3): 165-174．

［14］Naik S P, Chiang A S T, Thompson R W, et al. Mesoporous silica with shortrange MFI structure. Mieroporous and Mesoporous Materials, 2003, 60(3): 213-224.

［15］Corma A, Corell C, PerezPariente J. Synthesis and characterization of the MCM-22 zeolite. Zeolites, 1995, 15(1):2-8.

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