15keV H3+離子撞擊含CH鍵或CO鍵的化合物與水混合之冰晶產生OH與CH化合物的FTIR光譜分析

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研究生：	廖鐿全 Yi-Cyuan Liao
論文名稱：	15keV H3+離子撞擊含CH鍵或CO鍵的化合物與水混合之冰晶產生OH與CH化合物的FTIR光譜分析 The FTIR spectra analysis of OH & CH chemical compound production of 15keV H3+ ion bombard on H2O & D2O ice mixed with CH-bond or CO-bond
指導教授：	李雄 Shyong Lee 李敬萱 C.S. Lee
口試委員:
學位類別：	碩士 Master
系所名稱：	工學院 - 機械工程學系 Department of Mechanical Engineering
畢業學年度：	96
語文別：	中文
論文頁數：	83
中文關鍵詞：	冰、碳氧鍵、碳氫鍵、氫氧鍵、離子束
外文關鍵詞：	ion beam, ice, CO bond, CH bond, OH bond
相關次數：	點閱：12 下載：0
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我們的行星系統，是由星際間密集分子雲（Dense molecular cloud）因重力相互吸引後所形成的。而星際間密集分子雲是由氣體和微小晶粒（Sub-micrometer sized grain）所組成【1】。而在太空低溫環境中氣體會附著在微小粒子上，形成固態的星際物質，主要包含H2O、CO、CO2、CH3OH及CH4…等【2】。這些星際冰晶在受來自太陽風（Solar wind）中之高能粒子轟擊後，其星際冰晶是如何演化，是我們主要探討之地方。
本實驗係利用超高真空（1×10-9 Torr）與低溫技術（18K）來模擬外太空環境，並使用能量為15keV，H3+離子轟擊含CH 或CO 鍵化合物與水H2O或D2O 混合之冰晶，並藉由傅式紅外光譜儀（FTIR）來掃描冰晶之結冰與轟擊之紅外光譜。
進而再分析所產生或消耗之OH(D)和CH(D)鍵化合物之面積，並分析H2O 與D2O 同位素在不同混合比例下對OH(D)和CH(D)鍵化合物之影響，最後，在對共有之OH(D)鍵（3200~3000 cm-1）做探討。

Our planetary system is composed of the collapse of dense molecular cloud,and it is attracted each other by gravity. The collapse of dense molecular cloud are composed of gases and sub-micrometer sized grains. The main composition of the interstellar solid material include H2O, CO, CO2, CH3OH and CH4 etc,.These interstellar ice after the energetic particle bombarded that are being come from the solar wind and how evolves its interstellar ice is the main place where we probe into.
In our experiment is to utilize ultra high vacuum ( 1×10-9 Torr) and cryogenic technique ( 18K) to simulate the environment of outer space, it use H3+ ion to bombard the ice that include CH or CO bond chemical compound and H2O or D2O mixed ,and the energy as 15keV. It used FTIR to scan the frozen and infrared spectrum of the ice crystal.
And then analyze the quantity of the chemical compound OH(D) and CH(D) bond that produced or consumed ,and analyze the influence of the mixing and proportions of H2O and D2O isotope with OH(D) and CH (D) bond. Finally, to do the discussion of OH(D) (3200~3000 cm-1) that is owned in common.

中文摘要............................................................................................................I
英文摘要..................................................................................................II
目錄.....................................................................................................................III
圖目錄................................................................................................................VI
表目錄................................................................................................................X
第一章 序論......................................................................................................1
1-1 簡介......................................................................................................1
1-2 各章摘要..............................................................................................2
第二章 實驗原理..............................................................................................3
2-1 演化機制..............................................................................................3
2-1-1 熱能.............................................................................................3
2-1-2 光子.............................................................................................3
2-1-3 高能粒子.....................................................................................4
2-2 紅外光譜術..........................................................................................4
2-2-1 振動模式.....................................................................................5
2-2-2 麥克森干涉儀............................................................................5
2-2-3 傅立葉轉換................................................................................7
2-3 同位素.................................................................................................9
第三章 實驗設備、步驟及參數.......................................................................11
3-1 實驗設備.............................................................................................11
3-1-1 真空系統..................................................................................11
3-1-2 離子源系統..............................................................................12
3-1-4 電磁鐵......................................................................................13
3-1-5 混氣系統..................................................................................13
3-1-6 液態氦冷卻系統......................................................................14
3-1-7 三維操作靶..............................................................................14
3-1-8 傅氏紅外光譜儀......................................................................14
3-1-9 資料收集處理系統..................................................................15
3-2 實驗步驟.............................................................................................15
3-2-1 準備實驗階段.........................................................................15
3-2-2 正式實驗階段.........................................................................16
3-3 實驗參數............................................................................................17
第四章 實驗結果與討論.................................................................................24
4-1 光譜圖介紹........................................................................................24
4-2 光譜分析............................................................................................25
4-3 純冰晶光譜分析................................................................................25
4-3-1 H2O 冰晶紅外光譜..................................................................26
4-3-2 D2O 冰晶紅外光譜...................................................................26
4-3-3 CO 冰晶紅外光譜....................................................................27
4-3-4 CO2 冰晶紅外光譜...................................................................27
4-3-5 CH4 冰晶紅外光譜...................................................................28
4-3-6 CH3OH 冰晶紅外光譜.............................................................28
4-4 混合冰晶光譜分析.............................................................................29
4-4-1 CH3OH + H2O , D2O（1:1）（1:3）冰晶紅外光譜………....29
4-4-2 CH4 + H2O , D2O（1:1）（1:3）冰晶紅外光譜……..............32
4-4-3 CO + H2O , D2O（1:1）（1:3）冰晶紅外光譜……………...35
4-4-4 CO2 + H2O , D2O（1:1）（1:3）冰晶紅外光譜……………..36
4-5 OH(D)光譜分析總結..........................................................................36
4-5-1 OH 光譜分析.............................................................................36
4-5-2 OD 光譜分析.............................................................................37
第五章 總結.....................................................................................................61
5-1 結論....................................................................................................61
5-2 未來展望............................................................................................64
附錄一...............................................................................................................65
參考文獻...........................................................................................................68

                                

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