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研究生：	蔡穎頡 Cai, Ying-jie
論文名稱：	銀與硫化物反應後之特性分析及應用 Characterization and application of silver reacted with sulfide
指導教授：	溫添進 Wen, Ten-chin
學位類別：	碩士 Master
系所名稱：	工學院 - 化學工程學系 Department of Chemical Engineering
論文出版年：	2009
畢業學年度：	97
語文別：	中文
論文頁數：	99
中文關鍵詞：	銀、硫化銀、噻吩、吸附誘導聚合、生化感測、維他命C 、多巴胺
外文關鍵詞：	dopamine, ascorbic acid, biosensing, adsorption-induced polymerization, thiophene, silver sulfide, silver
相關次數：	點閱：65 下載：3
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本論文研究包含兩部份，第一部分是關於三甲基噻吩在銀表面上吸附誘導聚合之特性研究，三甲基噻吩在無施加電流、電位、化學氧化劑、以及其他能量的條件下，可在銀表面上自發性地發生聚合反應。從紫外光/可見光光譜觀察到銀基板之最大反射波峰會隨浸泡時間而產生紅位移(Red shift)現象，且波峰形狀越來越寬廣；從掃瞄式電子顯微鏡發現銀基板上有高分子生成；從X光光電子能譜發現銀與硫之間有顯著的交互作用，此表示三甲基噻吩藉由強力的硫銀鍵結而吸附在銀基板表面；最後利用拉曼光譜與循環伏安法鑑定聚三甲基噻吩的結構形態與電化學特性，並推導聚三甲基噻吩之聚合機制。此外我們發現不同官能基的噻吩衍生物其聚合反應行為皆不相同，推測可能與官能基之推、拉電子能力或立體障礙效應有關。
論文第二部分則是利用物理氣相法製備銀電極，並以簡易的循環伏安法於銀電極表面修飾上一層硫化銀，最後將此硫化銀修飾銀電極應用於多巴胺之感測。從循環伏安圖和差式脈衝伏安圖中發現，即使溶液中含有高濃度的維他命C，多巴胺與維他命C兩者的氧化波峰仍可以分離，且多巴胺的氧化電流密度與其濃度呈現良好的線性關係，此代表硫化銀修飾銀電極對於多巴胺之感測具有不錯的靈敏度(Sensitivity)與選擇性(Selectivity)。

In this thesis, it studies on the silver application in adsorption-induced polymerization of thiophene derivatives and biosensor. The contents include two parts:
In first section, the adsorption-induced polymerization of 3-methylthiophene (3MT) on silver surface was investigated and characterized. P3MT would be spontaneously synthesized on silver surface without any driving force such as current, potential, chemical oxidants. X-ray photoelectron spectroscope showed that 3-methylthiophene was absorbed upon silver surface via Ag-S bonding. In addition, the UV-Vis spectroscopic and scanning electron microscopic (SEM) results revealed that the formation of P3MT. The electrochemical property and polymer structure of P3MT were identified using cyclic voltammetric method and Micro-Raman spectroscope. It was found that the monomer with different functional groups would affect the polymerization reaction of thiophene derivatives owing to the electro-withdrawing/donating ability or the steric hindrance effect of functional groups.
In the second section, silver sulfide modified silver electrode which was prepared by electrochemically deposition applied in electroanalysis of dopamine, Through cyclic voltammetric and differential pulse voltammetric measurement, silver sulfide modified silver electrode was demonstrated good sensing ability for dopamine and had excellent electrocatalytic ability toward ascorbic acid oxidation. The modified electrode resolved the overlapping voltammetric responses of dopamine and ascorbic acid into two well-defined voltammetric peaks and showed a linear calibration curve over the range from 1μM to 100 μM, The modified electrode possessed good sensitivity and selectivity in dopamine biosensing.

目錄
中文摘要......................................................................................................................Ⅰ
英文摘要......................................................................................................................Ⅲ
致謝..............................................................................................................................Ⅴ
目錄..............................................................................................................................Ⅵ
圖目錄..........................................................................................................................Ⅷ
表目錄......................................................................................................................ⅩⅠ

第一章 緒論..................................................................................................................1
1-1 銀的簡介.................................................................................................................1
    1-1-1 銀的衍生物與應用.....................................................................................2
    1-1-2 銀與生化感測.............................................................................................8
1-2 銀與硫化物...........................................................................................................10
    1-2-1 金屬硫化物...............................................................................................10
    1-2-2 銀與有機硫化物之作用與特性...............................................................12
          1-2-2-1 吸附、脫硫、裂解.......................................................................12
          1-2-2-2 自組裝單分子層........................................................................13
          1-2-2-3 吸附誘導聚合............................................................................14
1-3 研究動機...............................................................................................................15

第二章 三甲基噻吩於銀表面上吸附誘導聚合行為之研究....................................17
2-1 前言.......................................................................................................................17
2-2 實驗部分...............................................................................................................18
    2-2-1 藥品與裝置...............................................................................................18
    2-2-2 玻璃基板之前處理...................................................................................19
    2-2-3 銀基板之製備...........................................................................................20
    2-2-4 聚三甲基噻吩-銀之合成步驟..................................................................20
    2-2-5 反射式紫外光/可見光光譜......................................................................21
    2-2-6 材料表面型態之分析...............................................................................21
    2-2-7 X光光電子能譜儀....................................................................................21
    2-2-8 歐傑電子顯微鏡.......................................................................................22
    2-2-9 電化學分析與測試...................................................................................22
    2-2-10 微拉曼及微光激發光譜儀.....................................................................22
2-3 結果與討論..........................................................................................................23
    2-3-1 聚三甲基噻吩-銀之紫外光/可見光光譜研究........................................23
    2-3-2 聚三甲基噻吩-銀之表面型態分析.........................................................25
    2-3-3 化學元素鑑定...........................................................................................26
    2-3-4 拉曼光譜之研究.......................................................................................27
    2-3-5 聚三甲基噻吩-銀電極之電化學性質分析..............................................28
    2-3-6 不同官能基噻吩衍生物於銀表面之作用……………….......................29
    2-3-7 聚合機制之探討.......................................................................................30
    2-3-8 聚三甲基噻吩-銀電極電催化效果之研究..............................................32
2-4 結論.......................................................................................................................33

第三章 硫化銀修飾銀電極應用於多巴胺感測之研究............................................50
3-1 前言.......................................................................................................................50
3-2 實驗部分...............................................................................................................52
    3-2-1 藥品與裝置...............................................................................................52
    3-2-2 玻璃基板之前處理...................................................................................53
    3-2-3 銀電極之製備...........................................................................................54
    3-2-4 硫化銀修飾銀電極之製備步驟...............................................................54
    3-2-5 表面型態分析...........................................................................................57
    3-2-6 X射線繞射儀.............................................................................................55
    3-2-7 X光光電子能譜儀.....................................................................................56
    3-2-8 歐傑電子光譜...........................................................................................56
    3-2-9 電化學分析與測試...................................................................................56
3-3 結果與討論...........................................................................................................57
    3-3-1 銀電極之特性分析...................................................................................57
    3-3-2 硫化銀修飾銀電極之製備與特性分析...................................................59
    3-3-3 硫化銀修飾銀電極之化學元素分析.......................................................60
    3-3-4 硫化銀修飾銀電極應用於多巴胺及維他命C測試之研究.....................60
    3-3-5 硫化銀修飾銀電極的催化效果...............................................................63
    3-3-5 多巴胺感測之研究...................................................................................64
    3-3-6 維他命C干擾之研究.................................................................................66
3-4 結論.......................................................................................................................67

第四章 結論與建議....................................................................................................83
4-1 結論.......................................................................................................................83
4-2 未來工作建議.......................................................................................................84

參考文獻......................................................................................................................86
自述..............................................................................................................................99
                                    

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