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Journal of Inorganic Materials

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2010 , Vol. 25 >Issue 3: 272 - 278

DOI: https://doi.org/10.3724/SP.J.1077.2010.00272

Research Paper

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

  • LIU Wei-Qiao ,
  • SHANG Tong-Ming ,
  • LI Gong ,
  • WU Fei-Ke ,
  • TONG Hui-Juan ,
  • SUN Yu-Han
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  • 1. School of Chemistry and Chemical Engineering,Jiangsu Teachers University of Technology, Changzhou 213001, China; 2. Department of Chemical Engineering,Jiangsu Polytechnic University, Changzhou 213016, China; 3. Institute of Coal Chemistry,Chinese Academy of Sciences, Taiyuan 030001, China

Received date: 2009-07-08

  Revised date: 2009-09-12

  Online published: 2010-03-20

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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

Cite this article

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, 2010 , 25(3) : 272 -278 . DOI: 10.3724/SP.J.1077.2010.00272

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