Abstract
Pillared layered MCM-36 zeolite (MCM-36-I) was successfully synthesized from MCM-56 precursor with polymeric silica as the pillaring agent. The structure and properties of the sample was characterized by means of N2 adsorption, XRD, TEM and IR spectroscopy of pyridine adsorption. The results showed that MCM-36-I has higher external surface area and more Brönsted acidic sites on external surface than that on the MCM-36 sample (MCM-36-II) which was synthesized from layered MCM-22 precursor. The catalytic properties of these samples were tested for alkylation of benzene with isopropanol. Compared with MCM-36-II catalyst, MCM-36-I showed higher conversion of benzene and selectivity to cumene. This should be mainly assigned to the fact that MCM-36-I possesses larger amount of accessible Brönsted acid sites which located on the external surface than that of MCM-36-II.
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Acknowledgments
This work was supported by the National Natural Science Foundation of China (20773050), the Technological Development Program of Jilin Province (20090590), the open subject of State Key Laboratory of Inorganic Synthesis and Preparative Chemistry (2012-15) and The innovation project of frontiers of Science and new interdiscipline of Jilin University.
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Zhang, Z., Zhu, W., Zai, S. et al. Synthesis, characterization and catalytic properties of MCM-36 pillared via the MCM-56 precursor. J Porous Mater 20, 531–538 (2013). https://doi.org/10.1007/s10934-012-9625-7
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DOI: https://doi.org/10.1007/s10934-012-9625-7