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研究生: 古珮欣
論文名稱: 片狀中孔洞材料的形貌調控與其於氣體感測的應用
Morphology Control and Gas Sensing Application of Platelet Mesoporous Material
指導教授: 楊家銘
口試委員:
學位類別: 碩士
Master
系所名稱: 理學院 - 化學系
Department of Chemistry
論文出版年: 2010
畢業學年度: 98
語文別: 中文
論文頁數: 94
中文關鍵詞: 中孔洞材料氣體感測
外文關鍵詞: mesoporous material, gas sensing
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  • 本論文分為三個部份。在第一個部份,我們利用添加
    ZrOCl2、改變矽源、
    改變水量、改變pH值、改變Zr4+濃度以及改變攪拌時間等方法調控中孔洞二氧
    化矽SBA-15的形貌,得到面積大而且厚度薄的片狀SBA-15。在此合成系統中由
    於二氧化矽表面含有高含量的Zr4+,其酸性可以催化糠醇的聚合,因此我們在
    第二部份中,以片狀二氧化矽作為模板,合成出類似CMK-5的片狀中孔洞碳
    材。在第三部份中,
    我們以片狀中孔洞碳為載體,將高分子單體以自由基聚合
    的方式使高分子交織於中孔洞碳材的孔洞中,形成高分子/中孔洞碳複合材料,
    並應用於氣體感測器作氣體的偵測。


    The
    thesis
    is
    divided
    into
    three
    parts.
    In
    the
    first
    part,
    we
    modulated
    the
    morphology
    of
    mesoporous
    silica
    SBA-15
    in
    the
    presence
    of
    ZrOCl2
    by
    controlling
    several
    synthesis
    parameters,
    such
    as
    silica
    source,
    the
    concentration
    of
    surfactant
    and
    silica
    source,
    the
    concentration
    of
    ZrOCl2,
    the
    value
    of
    pH,
    or
    by
    changing
    the
    time
    for
    stirring
    after
    the
    addition
    of
    silica
    source.
    The
    synthesis
    parameters
    were
    controlled
    in
    order
    to
    obtain
    platelet
    SBA-15
    with
    large
    area
    and
    thin
    thickness.
    The
    high
    content
    of
    Zr4+
    on
    the
    SBA-15
    surface
    could
    catalyze
    the
    polymerization
    of
    furfuryl
    alcohol,
    thus
    in
    the
    second
    part,
    we
    synthesized
    CMK-5-like
    platelet
    mesoporous
    carbon
    by
    nanocasting
    and
    the
    platelet
    SBA-15
    was
    used
    as
    hard
    template.
    In
    the
    third
    part,
    monomers
    of
    various
    polymers
    were
    polymerized
    inside
    platelet
    mesoporous
    carbon
    by
    free-radical
    polymerization.
    We
    used
    these
    polymer/mesoporous
    carbon
    nanocomposite
    as
    sensing
    materials
    and
    applied
    on
    gas
    sensor
    for
    gas
    detection.

    中文摘要................................................................................................................. I 英文摘要................................................................................................................. II 目錄........................................................................................................................... III 圖目錄....................................................................................................................... IV 表目錄...................................................................................................................... VII 第一章 緒論.......................................................................................... 1 1-1 中孔洞二氧化矽材料簡介......................................................................... 1 1-2 界面活性劑簡介............................................................................................ 3 1-2-1 界面活性劑的結構與種類.......................................................... 3 1-2-2 界面活性劑的膠體化學............................................................... 5 1-2-3 雙性塊狀共聚高分子.................................................................... 8 1-3 二氧化矽的溶膠凝膠化學......................................................................... 10 1-4 中孔洞二氧化矽形成機制......................................................................... 14 1-4-1 界面活性劑與矽酸鹽交互作用的類形.................................. 14 1-4-2 真實液晶模板機制....................................................................... 16 1-4-3 互助液晶模板機制....................................................................... 17 1-4-4 電荷密度契合機制....................................................................... 18 1-4-5 層狀摺疊機制................................................................................ 18 1-5 SBA-15的形成機制.................................................................................... 20 1-6 SBA-15型貌的調控.................................................................................... 25 1-7 中孔洞碳材................................................................................................... 29 1-8 中孔洞高分子複合碳材........................................................................... 32 1-9 研究動機........................................................................................................ 33 第二章 實驗部份................................................................................ 34 2-1 實驗藥品.......................................................................................................... 34 2-2 中孔洞二氧化矽材料Zr-SBA-15的形貌調控..................................... 35 2-2-1 Zr-SBA-15合成過程形貌變化的觀察.............................. 36 2-2-2 合成條件的調控...................................................................... 37 2-2-3 加入矽源後攪拌時間的改變.............................................. 38 2-3 片狀中孔洞碳材CMK的合成................................................................... 39 2-4 片狀高分子/CMK複合材料的合成........................................................ 39 2-5 氣體感測實驗................................................................................................ 41 2-5-1 氣體感測器的製作................................................................. 41 2-5-2 氨氣氣體感測的實驗............................................................. 41 2-6 儀器鑑定與分析............................................................................................ 42 2-6-1 X光粉末繞射............................................................................. 41 2-6-2 氮氣物理吸附儀....................................................................... 44 2-6-3 熱重分析儀................................................................................ 49 2-6-4 掃描式電子顯微鏡.................................................................. 50 2-6-5 穿透式電子顯微鏡................................................................. 50 2-6-6 感應耦合電漿質譜分析儀................................................... 52 第三章 實驗結果與討論................................................................. 53 3-1 Zr-SBA-15的型貌調控................................................................................ 49 3-1-1 Zr-SBA-15合成過程型貌變化的觀察.............................. 49 3-1-2 Zr-SBA-15 合成條件的調控................................................ 56 3-1-2-1 改變矽源的影響...................................................... 56 3-1-2-2 改變水量的影響...................................................... 59 3-1-2-3 改變鹽酸濃度的影響............................................ 64 3-1-2-4 改變Zr4+濃度的影響.............................................. 69 3-1-3 加入矽源後攪拌時間的改變............................................... 72 3-2 片狀中孔洞碳材的合成............................................................................. 78 3-3 片狀高分子/中孔洞碳複合材料的合成............................................... 84 3-4 氨氣氣體的量測............................................................................................ 86 第四章 結論......................................................................................... 89 第五章 參考文獻................................................................................ 90

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