Synthesis and Characterization of Hierarchical ZSM-48 zeolite
A series of hierarchical ZSM-48 zeolites was prepared by seed silanization.The structural and textural properties of the hierarchical ZSM-48 were characterized by X-ray diffraction (XRD),scanning electron microscope (SEM),transmission electron microscope (TEM),N2 adsorption-desorption,27Al and 29Si magic angle spinning nuclear magnetic resonance (MAS NMR),and Fourier transform infrared spectroscopy adsorbed by pyfidine (Py-IR).It was found that the crystal size of ZSM-48 was significantly reduced by seed silanization.Due to the secondary porosity in the mesopore region generated in hierarchical ZSM-48,both the total surface area and the pore volume of the material have a considerable increase.The enhancement of the textural properties could be controlled by changing the amount of silanizaiton agent.
ZSM-48 zeolite hierarchical porous silanization
Xiaoling Liu Xujin Wang Yan Wang Yanjun Gong Tao Dou
State Key Laboratory of Heavy Oil Processing,The Key Laboratory of Catalysis of China National Petroleum Corporation,China University of Petroleum-Beijing,Changing Beijing,102249,China
国际会议
西安
英文
756-759
2012-06-12(万方平台首次上网日期,不代表论文的发表时间)