Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 58, Issue 34, Pages 15453-15458Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.9b03357
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Funding
- National Key Research and Development Program of China [2018YFB0604801]
- National Natural Science Foundation of China [21822203, 91645105, 91634201]
- China Postdoctoral Science Foundation [2018M630662]
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering of the Beijing University of Chemical Technology [21530009067]
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We report the synthesis of Zn/ZSM-5 particles coated with a silicalite-1 zeolite shell (core-shell Zn/ZSM-5@ silicalite-1) via grinding of the raw silica source materials with TPAOH and Zn/ZSM-5, followed by solvent-free crystallization at 180 degrees C for 72 h. The product was well characterized by the XRD patterns, N-2 sorption isotherms, SEM images, and TEM images. Because of the core-shell structure, the Zn/ZSM-5@silicalite-1 sample exhibits high selectivities for benzene, toluene, and xylenes in the conversion of methanol, compared with those over ZSM-5 and Zn/ZSM-5 samples. The solvent-free synthesis offers an alternative method for preparing core-shell Zn/ZSM-5@silicalite-1 catalysts.
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