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研究生:林育德
研究生(外文):Yu-Te Lin
論文名稱:利用光還原法於CuCrO2擔體上製備奈米金觸媒
論文名稱(外文):Au nanoparticle catalyst prepared by photoreduction on CuCrO2 nanopowder
指導教授:邱德威
口試委員:楊永欽蘇昭瑾施文欽
口試日期:2012-07-12
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:材料及資源工程系研究所
學門:工程學門
學類:材料工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:70
中文關鍵詞:光還原法奈米金觸媒CuCrO2
外文關鍵詞:photoreductionAu nanoparticle catalystCuCrO2
相關次數:
  • 被引用被引用:1
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  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
本實驗利用光還原的方式以CuCrO2奈米粉末作為擔體黏附奈米金粒子以合成金觸媒,以X光繞射及電子顯微鏡的檢測來探討Au/CuCrO2的特性,並以示差掃描熱卡計測定奈米金觸媒的催化活性。將CuCrO2奈米粉末與四氯金酸加入水中,利用氨水調整前驅溶液的酸鹼值,再放進光催化槽中光照後,離心乾燥,再將所得粉末經退火處理形成奈米金觸媒。XRD及TEM觀察顯示成功地在CuCrO2擔體上黏附平均粒徑3.2 nm的金奈米粒子,利用熱示差掃描卡量計測試發現Au/CuCrO2觸媒於反應溫度100°C時可吸附一氧化碳發生反應,前驅溶液越偏鹼性吸熱峰越明顯,其中以前驅液pH10所合成之奈米金觸媒催化效果最佳,熱能差值為1.008 mW/mg。利用傅立葉紅外線轉換光譜儀測量發現波長1740 cm-1附近出現醛基C=O雙鍵的官能基吸收位置,可證明苯甲醇經Au/CuCrO2觸媒催化後部分氧化成苯甲醛。

Gold catalysts supported on CuCrO2 nanopowder were prepared by photodeposition method. The Au/CuCrO2 catalyst was characterized by X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (TEM). The catalyst activity was measured by differential scanning calorimeter (DSC). CuCrO2 nanopowder and HAuCl4 solution were mixed as precursor solutions, the solution were dried in desiccator after irradiation. Au/CuCrO2 samples were annealed at 300oC for 4 hours and stored in the desiccators for catalytic measurement. In this study, gold catalyst supported successfully on CuCrO2 nanopowder, XRD pattern showed that typical peaks of gold and CuCrO2 supports are easily observed. TEM image showed that the grain size of gold particle is about 3.2 nm on CuCrO2 supports. According to the DSC measurement, Au/CuCrO2 catalyst may react with carbon monoxide as the reaction temperature at 100°C. FT-IR spectrum shows the wavelength of 1740 cm-1 appears aldehyde C=O function group absorption, the result can prove that Au/CuCrO2 catalyst make benzyl alcohol partial oxide into benzaldehyde.

摘要 I
Abstract II
致謝 III
目錄 IV
表目錄 VII
圖目錄 VIII
第一章 前言 1
第二章 文獻回顧 3
2.1赤銅鐵礦化合物 3
2.2 燃燒合成法 4
2.3光觸媒簡介 6
2.4 光觸媒催化原理 6
2.5 金觸媒簡介 8
2.6 影響金觸媒催化的因素 10
2.6.1 金粒子粒徑的影響 10
2.6.2 載體的影響 11
2.6.3 酸鹼值的影響 13
2.6.4 氯離子的影響 15
2.6.5 前驅物濃度的影響 15
2.7 金觸媒製備 17
2.8 一氧化碳於金觸媒上之氧化反應 19
第三章 實驗方法與步驟 20
3.1實驗方法 20
3.1.1實驗藥品 20
3.1.2光觸媒擔體之製備 21
3.1.3金觸媒之製備 22
3.2 特性分析 24
3.2.1 觸媒晶體結構分析 24
3.2.2 觸媒粉體表面形貌分析 25
3.2.3 粉體比表面積分析 26
3.2.4 光催化槽 28
3.2.5觸媒粉體微觀晶體結構分析 29
3.2.6觸媒粉體元素含量分析 31
3.2.7觸媒活性測試 32
3.2.8拉曼光譜儀分析 33
3.2.9傅立葉轉換紅外線光譜儀 35
第四章 結果與討論 37
4.1前驅物CuCrO2奈米粉末 37
4.1.1 CuCrO2粉末XRD分析 37
4.1.2 CuCrO2粉末拉曼光譜分析 38
4.1.3 CuCrO2粉末微結構分析 39
4.1.4燃燒法CuCrO2 粉末粒徑分析 41
4.1.5 CuCrO2粉末吸附曲線分析 43
4.2 Au/CuCrO2觸媒特性分析 44
4.2.1 Au/CuCrO2觸媒XRD分析 44
4.2.2 Au/CuCrO2觸媒XRF分析 47
4.2.3 Au/CuCrO2觸媒SEM分析 47
4.2.4 Au/CuCrO2觸媒TEM分析 49
4.3 Au/CuCrO2觸媒活性測試 51
4.3.1 一氧化碳催化測試 51
4.3.2 苯甲醇選擇性氧化測試 60
第五章 結論 63
5.1甘胺酸燃燒法製備CuCrO2粉末 63
5.2光還原法合成Au/CuCrO2觸媒 63
5.3觸媒活性測試 64
參考文獻 65
作者簡歷 69


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