SEISAN KENKYU
Online ISSN : 1881-2058
Print ISSN : 0037-105X
ISSN-L : 0037-105X
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Volume 59, Issue 3
Displaying 1-46 of 46 articles from this issue
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  • Synthesis of zeolite-mesoporous material composite by steam-assisted crystallization
    Kensuke TAKIZAWA, Masaru OGURA
    2007 Volume 59 Issue 3 Pages 333-338
    Published: 2007
    Released on J-STAGE: June 29, 2007
    DOIhttps://doi.org/10.11188/seisankenkyu.59.333
    JOURNAL FREE ACCESS
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    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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