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    National Tsing Hua University Institutional Repository > 理學院 > 化學系 > 期刊論文 >  Structural modulation of cage-like mesoporous KIT-5 silica by post-synthesis treatments with ammonia and/or sulfuric acid


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/57248


    Title: Structural modulation of cage-like mesoporous KIT-5 silica by post-synthesis treatments with ammonia and/or sulfuric acid
    Authors: Wu, Cheng-Yu;Hsu, Ya-Ting;Yang, Chia-Min
    教師: 楊家銘
    Date: 2009
    Publisher: Elsevier
    Relation: Microporous and Mesoporous Materials,Elsevier , Amsterdam.,Volume: 117,Issue: 1-2,Pages: 249-256 Published: JAN 1 2009
    Keywords: X-RAY-DIFFRACTION
    LARGE-PORE SILICA
    SYNTHESIS TEMPERATURE
    OLIGOMERIC SURFACTANT
    COPOLYMER TEMPLATE
    Abstract: The post-synthesis structural modulation of cage-like mesoporous KIT-5 silica by the treatments with the ammonia solution of NH4OH and/or the aqueous solution of H2SO4 was studied. While the NH4OH-treated KIT-5 silicas generally have smaller unit cell parameters, smaller mesopore cage sizes and lower micropore volumes, the H2SO4 treatment gave materials with larger cage-like mesopores and pore entrances but very low micropore volumes. The effects of consecutive treatments with NH4OH and H2SO4 on the structural properties of the treated KIT-5 silicas were also investigated.
    URI: http://www.elsevier.com/
    http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/57248
    Appears in Collections:[化學系] 期刊論文

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