臺灣博碩士論文加值系統

本研究將化學還原法產生的奈米銀顆粒加入不同濃度的碳酸鹽乙烯(Ethylene Carbonate , EC)水溶液，並利用拉曼光譜觀察溶液中含不同大小、密度的銀顆粒對EC分子費米共振耦合頻差的影響。實驗發現，對於相同銀顆粒大小，耦合頻差大小線性正比於溶液中單位體積之銀總表面積；而對相同單位體積之銀總表面積的溶液來說，銀顆粒越小造成的耦合頻差越大。這顯示具有表面電場效應的銀顆粒能提升吸附其上的EC分子之耦合頻差;而粒徑越小的銀顆粒，由於其表面電場效應越強，所以耦合頻差的提升也越高。因此根據這些結果，我們可以利用EC分子的費米共振耦合頻差來推估銀顆粒的粒徑平均大小。

The research aims to add the silver nanoparticle produced by the chemical reduction method to solution of Ethylene Carbonate with different concentration. Then make use of the Raman Spectroscopy to observe if the size or density of silver particles cause any effects on EC particles in terms of difference frequency coupling through Fermi resonance. It is found that there is a direct proportional linear correlation between the different frequency coupling and the total silver superficial area of the unit volume when the size of silver particles are the same. On the other hand, when the total silver superficial areas of the unit volume are the same, the less the silver particle is, the more the difference frequency coupling will be.
The findings suggest that the electric field effect produced by the silver particle helps raise the adsorption of the different frequency coupling from the molecular of EC. This also implies that the less the silver particle size is, the more intensive the electric field will be, which in turns elevate the different frequency coupling. According to the results mentioned above, we can estimate the average size of silver particle through the different frequency coupling produced from the molecular of EC.

致謝…………………………………………………………………… i
中文摘要……………………………………………………………… ii
Abstract……………………………………………………………… iii
目錄……………………………………………………………………iv
圖目錄………………………………………………………………… vii
表目錄………………………………………………………………… x
序論
1.1前言………………………………………………………………………… 1
1.2論文架構………………………………………………………………… 3
原理簡介 ………………………………………………… 4
2.1拉曼理論簡介………………………………………………………… 5
2.1.1 古典理論 ……………………………… 5
2.1.2 量子理論 ……………………………… 9
2.2費米共振簡介………………………………………………………… 10
實驗方法 ………………………………………………… 15
3.1實驗儀器與架構 ………………………………………………… 16
3.1.1 實驗儀器 ……………………………………………… 16
3.1.2 實驗架構 ……………………………… 18
3.2實驗樣品配置………………………………………………………… 20
3.2.1 實驗藥品 ………………………………… 20
3.2.2 還原奈米銀顆粒樣品配製 …… 20 3.2.2 還原奈米銀顆粒樣品總表面積計算……23
3.2.4 碳酸演乙烯水溶液樣品配製 …… 25
3.3數據處理 ……………………………………………………………… 29
結果與討論 …………………………………………… 34
4.1耦合距離分析………………………………………………………… 35
4.1.1單位體積之銀總表面積分析……………………………39
4.1.2單位體積之銀顆粒總質量分析…………… 43
4.1.3量測未知銀顆粒大小…………………………… 45
4.2費米共振耦合強度比分析…………………………… 47
4.3未產生費米共振之頻差(∆_0) …………………49
結論與未來工作 …………………………… 52
參考文獻 …………………………………………………………… 53

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