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研究生:許寶璌
研究生(外文):Bao-Yin Hsu
論文名稱:應用電紡白金奈米纖維與白金碳載體製作陰極雙層觸媒電極對質子交換膜燃料電池性能影響測試分析
論文名稱(外文):Preparation of dual-layer structured cathode catalyst layer with electrospun Pt nanowires and Pt/C on the performance of PEMFC
指導教授:張敏興
指導教授(外文):Min-Hsing Chang
口試委員:張敏興
口試委員(外文):Min-Hsing Chang
口試日期:2013-07-17
學位類別:碩士
校院名稱:大同大學
系所名稱:機械工程學系(所)
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2013
畢業學年度:101
語文別:中文
論文頁數:71
中文關鍵詞:雙層觸媒電極白金奈米纖維質子交換膜燃料電池Nafion濃度
外文關鍵詞:dual-layer structured cathode catalyst layerPt nanowiresproton exchange membrane fuel cellNafion content
相關次數:
  • 被引用被引用:2
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  • 下載下載:35
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本研究目的為應用電紡白金奈米纖維與白金碳載體製作陰極雙層觸媒電極,並測試是否能有效提升質子交換膜燃料電池的性能,以及判斷最佳雙層觸媒製作參數條件,包括白金奈米纖維與白金碳載體的含量,以及各觸媒層Nafion的濃度。實驗過程中利用電流-電壓極化曲線、電化學阻抗頻譜、循環伏安法以及交換電流密度進行性能測試分析。
由實驗結果發現,雙層的陰極觸媒層結構確實能有效提升燃料電池性能,而在雙層觸媒層內層(靠近質子交換膜側)為白金碳載體與外層(靠近氣體擴散層側)為白金奈米纖維的結構可得到最佳的燃料電池性能,且在所探討的參數中,內層白金碳載體塗佈量為0.4 mg cm-2與外層白金奈米纖維塗佈量為0.1 mg cm-2,Nafion含量分別為30%與20%時,燃料電池有最佳的性能表現
In the study, we have considered the effect of dual-layer structured cathode catalyst layer with electrospun Pt nanowires and Pt/C ,determined the optimal dual-layer structured catalyst layer design parameters including Pt nanowires and Pt/C loading, Nafion content by measuring the variations of cell performance. The experiments have been used polarization curve, electrochemical impedance spectroscopy, cyclic voltammetry, exchange current density .
The experiment results indicated the dual-layer structured cathode catalyst layer structure can effectively improve the fuel cell performance . The dual-layer structured with inner layer of Pt/C (Near the proton exchange membrane side)and outer layer of Pt nanowires (Near the gas diffusion layer side)could enhance the performance effectively, and the parameters discussed in when loading ration of 0.4 mg cm-2 Pt/C and 0.1 mg cm-2 Pt nanowires that the performance is fine. The cell have the best performance with inner layer is 30% and outer layer is 20%.
第一章 緒論 1
1.1 前言 1
1.2 電紡奈米纖維絲介紹 3
1.3 文獻回顧 4
1.3.1 白金奈米纖維 4
1.3.2 雙層觸媒 5
1.4 研究目的 8
第二章 實驗規劃與研究方法 10
2.1 膜電極組製備 10
2.1.1 白金奈米纖維的製作 10
2.1.2 陰極觸媒漿料製作 13
2.1.3 雙層觸媒電極塗佈 15
2.1.4 質子交換膜的清潔方法 18
2.1.5 MEA熱壓 19
2.2 燃料電池組裝 20
2.3 燃料電池量測 21
2.3.1 MEA活化 21
2.3.2 電流-電壓極化曲線 22
2.3.3 量測電化學阻抗頻譜 24
2.3.4 等校電路模擬分析 25
2.3.5 循環伏安法 26
2.3.6 交換電流密度 29
第三章 實驗結果與討論 32
3.1白金奈米纖維表面影像分析 32
3.2 內層為白金碳載體與外層為白金奈米纖維不同含量之效應 33
3.2.1 性能極化曲線之變化 33
3.2.2 交流阻抗之分析 34
3.2.3 循環伏安頻譜之分析 35
3.2.4 交換電流密度之變化 35
3.3 內層為白金奈米纖維與外層為白金碳載體不同含量之效應 44
3.3.1 性能極化曲線之變化 44
3.3.2 交流阻抗之分析 44
3.3.3 循環伏安頻譜之分析 45
3.3.4 交換電流密度之變化 45
3.4 外層Nafion不同含量之效應 53
3.4.1 性能極化曲線之變化 53
3.4.2 交流阻抗之分析 53
3.4.3 循環伏安頻譜之分析 54
3.4.4 交換電流密度之變化 55
3.5 內層Nafion不同含量之效應 60
3.5.1 性能極化曲線之變化 60
3.5.2 交流阻抗之分析 60
3.5.3 循環伏安頻譜之分析 61
3.5.4 交換電流密度之變化 62
第四章 結論與未來展望 67
參考文獻 68
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