研究生: |
高陳佑 Chen-yu Kao |
---|---|
論文名稱: |
多層奈米碳管之氧化:以五種酸液及鹼液之液相氧化 Liquid Phase Oxidation of Multi-walled Carbon Nanotubes (MWNTs) in Five Aqueous Solutions |
指導教授: |
鄭如茵
Ju-Yin Cheng |
口試委員: |
楊銘乾
Ming-Chien Yang 蘇清淵 Ching-Iuan Su |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 材料科學與工程系 Department of Materials Science and Engineering |
論文出版年: | 2008 |
畢業學年度: | 96 |
語文別: | 中文 |
論文頁數: | 71 |
中文關鍵詞: | 奈米碳管 、氧化 |
外文關鍵詞: | multi-walled carbon nanotubes (MWNTs), oxidation |
相關次數: | 點閱:182 下載:3 |
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本實驗中,選用HNO3、H2SO4、HCl、H2O2、KOH五種水溶液與多層奈米碳管進行氧化反應,前三種為強酸,第四種為弱酸,第五種為強鹼。其中前二種為帶含氧基的酸根,第三種為不帶含氧基的酸根,最後二種可解離出OH基。使用單種溶液個別進行氧化,而不使用混合溶液,是希望藉由凸顯單一溶液的分子特性,來釐清其對於奈米碳管與非晶質碳所可能引發不同的氧化現象。研究中利用穿透式電子顯微鏡(TEM)來觀察碳管結構。並利用熱重損失分析儀(TGA)結果,計算氧化前後碳管與非晶質碳(amorphous carbon)消長的比率,進一步作圖找出溶液中氧化反應與TGA熱裂解反應的活化能。也利用拉曼(Raman)光譜分析,更詳細找出RBM, D band 與G band中所各自代表結構的衰減比率。
In this study, we select five aqueous solution react with multi-walled carbon nanotubes (MWNTs) in liquid phase. Including nitric acid, sulfuric acid, hydrochloride acid, hydrogen peroxide, potassium hydroxide. The first three kinds are strong acids, the fourth kind is a weak acid, the last one is a strong base. Thr first two are oxygen acid. Third one is acid without oxygen. The last two are solution with hydroxyl. In order to tell different form each solution when reacting with MWNTs when oxidizing, the reactions were carriing out individually .We used TEM to observe the construction of MWNTs. And then we used TGA to analyse the amount of amorphous carbon and MWNTs are increased or reduced. Last, we used Raman spectroscopy to know more detail about the reaction of oxidation.
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