臺灣博碩士論文加值系統

本次研究中利用CuCrO2前驅液製備氧化鋁-銅鉻氧化物(Al2O3 - CuCrO2)核-殼結構。使用醋酸銅、醋酸鉻、乙醇胺及乙二醇甲醚混合作為CuCrO2前驅液，再利用商業氧化鋁(Al2O3)球作為模板，透過前驅液含浸氧化鋁微米球後，將銅鉻離子沉積在Al2O3球的表面，再將含浸後的粉末，在150˚C加熱板上烘乾4分鐘，然後冷卻3分鐘。重複5次循環以獲得所需的厚度。並利用兩階段退火:第一階段在氫氣(10%)和氮氣(90%)中，以升溫速率10˚C/min，到達400˚C並持溫15分鐘，然後第二階段，將反應氣體轉換為純氮氣，以升溫速率10˚C/min，升溫至600˚C退火1小時，得到Al2O3 - CuCrO2核-殼結構。由XRD分析得知樣品呈現CuCrO2與Al2O3的峰值。SEM圖中可以看出Al2O3 - CuCrO2呈現出核-殼結構。

In this work, Alumina/Copper chromium oxide (Al2O3 - CuCrO2) core-shell structure was prepared by CuCrO2 precursor. Initially, CuCrO2 precursor solution was mixed by copper acetate, chromium acetate, ethanolamine and ethylene glycol methyl ether. And the commercial Alumina (Al2O3) microspheres were used as a template. The Al2O3 microspheres were dipped in the CuCrO2 precursor solution, then mainly depositing copper chromium ions on the surface of Al2O3 microspheres. The deposition Al2O3 microspheres was dried at the 150˚C hotplate for 4 min and then cooled down for 3 min. This procedure was performed with 5 cycles to obtain the desired thickness. The sample were annealed with two-step. First step was in the hydrogen (10%) and nitrogen (90%) atmosphere risen to 400˚C (rise rate10˚C/min) for 15 minutes, and then second step, the forming gas was switched to a pure nitrogen, and risen to 600˚C (rise rate10˚C/min) annealed for 1 hour to obtain the Al2O3-CuCrO2 core-shell structure. XRD analysis showed that the peak of CuCrO2 and Al2O3 appear. It could be seen through the SEM image that the top view presented the Al2O3 - CuCrO2 core-shell structure.

摘 要 i
ABSTRACT ii
誌 謝 iii
目錄 iv
表目錄 viii
圖目錄 ix
第一章、緒論 1
1.1 總覽 1
1.2 研究目的 3
第二章、文獻回顧 4
2.1 赤銅鐵礦結構 ( Delafossite ) 4
2.2 核殼結構(Core-Shell Structure) 1 5
2.2.1 引言 5
2.2.2 核殼複合結構之特性 6
2.2.3 核殼結構之複合方法 7
2.2.3.1 聚合化學反應 7
2.2.3.2 生物分子 7
2.2.3.3 表面化學沉積 8
2.2.3.4 超音波化學 8
2.2.3.5 自組裝 9
2.2.4 核殼複合結構之形成機制 9
2.2.4.1 化學鍵 9
2.2.4.2 庫倫靜電力 10
2.2.4.3 介質層吸附 10
2.2.5 核殼複合材料之應用 10
2.3 氧化鋁(Al2O3) 12
2.4 減壓過濾法 14
2.4.1原理 14
2.4.2器材 15
2.4.3實驗操作 16
2.4.4 應注意事項 17
第三章、實驗步驟 18
3.1 實驗藥品 18
3.2 實驗氣體 18
3.3 粉末熱處理 19
3.4 特徵分析 21
3.4.1熱重分析 21
3.4.2 X-ray繞射光譜儀 22
3.4.3場發射掃描式電子顯微鏡 ( FE-SEM ) 24
第四章、製備氧化鋁-銅鉻氧化物核殼球之特性研究 26
4.1 實驗方法 26
4.1.1 製備赤銅鐵礦前驅液 26
4.1.2 減壓過濾法 27
4.1.3 二階段退火 28
4.2 結果與討論 29
4.2.1 X-ray繞射光譜儀分析 29
4.3.2 掃描式電子顯微分析 31
4.3.3 化學元素定性、定量分析 32
4.3.4 熱重分析 37
第五章、以甘胺酸燃燒法製備NaCrO2奈米粉末之研究 39
5.1 研究目的 39
5.2 文獻探討 40
5.2.1赤銅鐵礦結構 40
5.2.2燃燒合成法 41
5.3 實驗步驟 43
5.3.1 實驗藥品 43
5.3.2 燃燒合成法製備NaCrO2粉末 44
5.4 結果與討論 45
5.4.1 燃燒合成法製備NaCrO2粉末之XRD分析 45
5.5 結論 47
第六章、以射頻磁控濺鍍法製備CuCrO2:Mg薄膜且探討NH3退火對其電性之研究 48
6.1 前言 48
6.2 實驗步驟 50
6.2.1 實驗藥品 50
6.2.2 基板準備 51
6.2.3 銅鉻氧化物靶材製備 52
6.2.4 濺鍍實驗 53
6.3 特徵分析 54
6.4 結果與討論 55
6.4.1 CuCrO2:Mg在不同退火溫度之XRD分析 55
6.4.2 CuCrO2:Mg之SEM分析 56
6.4.3電性分析 57
6.4.4 CuCrO2:Mg薄膜之XPS分析 58
6.5 結論 63
第七章、結論 64
參考文獻 65
Conference presentations 70

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