Online ISSN : 1881-2058
Print ISSN : 0037-105X
ISSN-L : 0037-105X
Volume 59 , Issue 3
Showing 1-46 articles out of 46 articles from the selected issue
  • Kensuke TAKIZAWA, Masaru OGURA
    2007 Volume 59 Issue 3 Pages 333-338
    Published: 2007
    Released: June 29, 2007
    A composite of zeolite/mesoporous materials was synthesized by a steam-assisted crystallization (SAC) method, using SBA-15 as a starting material. The mesopore wall of SBA-15 with a structure-directing agent (SDA) was treated with steam for several days, leading to the formation of primary or secondary building units on mesoporous SBA-15. It was shown that the hydrophobicity of SDAs, Al source, and Si/Al ratio play a promotional role on the crystallization rate of zeolites in order to enhance the interaction between SDA and the pore wall. It was also shown that the mesostructure can be retained during SAC synthesis by filling carbon into the mesopore.
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