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6933452 
Journal Article 
Solvent-Free Synthesis of Core-Shell Zn/ZSM-5@Silicalite-1 Catalyst for Selective Conversion of Methanol to BTX Aromatics 
Zhang, J; Wang, L; Wu, Z; Wang, Hai; Wang, C; Han, S; Xiao, FS; , 
2019 
Yes 
Industrial and Engineering Chemistry Research
ISSN: 0888-5885
EISSN: 1520-5045 
AMER CHEMICAL SOC 
WASHINGTON 
58 
34 p.15453-15458 
15453-15458 
English 
WOS:000484059900008 
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.