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作者(中文):古珮欣
論文名稱(中文):片狀中孔洞材料的形貌調控與其於氣體感測的應用
論文名稱(外文):Morphology Control and Gas Sensing Application of Platelet Mesoporous Material
指導教授(中文):楊家銘
學位類別:碩士
校院名稱:國立清華大學
系所名稱:化學系
學號:9723506
出版年(民國):99
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 materialgas 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................................................................................
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