Synthesis of nanosized ZSM-5 zeolite with intracrystalline mesopores

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• 作者：Zhaoteng Xue ; Jinghong Ma ; ^{majinghong@tyut.edu.cn} ; Tuo Zhang ; Haixia Miao ; Ruifeng Li ; ^{rfli@tyut.edu.cn} ; ^{ruifeng_li@hotmail.com}
• 关键词：Porous materials ; Nanoparticles ; Mesoporous zeolite ; Organosilane ; Interfaces
• 刊名：Materials Letters
• 出版年：2012
• 出版时间：1 February 2012
• 年：2012
• 卷：68
• 期：Complete
• 页码：1-3
• 全文大小：612 K

文摘

A series of nanosized ZSM-5 zeolite samples with intracrystalline mesopores has been synthesized using organosilane functioned fumed silica as silica source and tetrapropylammonium hydroxide as microporous structure directing agent. The organic moiety linked on the surface of fumed silica blocks the growth of zeolite crystal, forming the nanosized zeolite crystal and intracrystalline defects inside the nano-crystal. The formation of the mesopores is by bond-blocking function in crystallization. The XRD results indicate that the samples are high crystalline ZSM-5 and the TEM images show that the samples are nanosized with the size ca. 20 nm and the intracrystalline mesopores about 3 nm exist inside the nanosized crystal.