臺灣博碩士論文加值系統

以靜電紡絲法所製作出的金屬奈米纖維對於質子交換膜燃料電池的效能提升有很大的應用潛力，但在眾多相關文獻中，卻未有以鉑鈀奈米纖維應用於燃料電池中觸媒層的研究。本研究使用聚乙烯吡咯烷酮（Polyvinylpyrrolidone，PVP）高分子混合Pt前驅物(六氯鉑酸)與Pd前驅物(氯化鈀)配置高分子溶液，以靜電紡絲的方法製作鉑鈀二元金屬奈米纖維作為質子交換膜燃料電池的電極觸媒，並進行性能測試分析。實驗過程中,詳細探討奈米纖維製作參數條件變化對纖維型態產生的效應。研究結果顯示，當PVP高分子濃度為8 wt%且六氯鉑酸與氯化鈀的重量百分比濃度為2 wt%，並在鉑與鈀的莫耳數比為3:1時，能夠得到最為完整且平均直徑44.12 nm的纖維，接著使用三電極系統進行循環伏安法測試不同組成比例的纖維性能後發現，當鉑與鈀的莫耳數比例同樣為3:1時，氫氣吸附的總電荷可達2.45×〖10〗^(-4) C，高於其他混合比例的纖維，本研究實驗結果證明了以靜電紡絲法製作鉑鈀奈米纖維以及應用於燃料電池的可能性。

The metal nanowires which were produced by electrospinning method have great potential at proton exchange membrane fuel cell (PEMFC). However, there is almost none research about PtPd nanowires for electrode catalyst in PEMFC. The electrospun nanofibers were produced by electrospun solution made of PVP polymer mixed with Pt precursor (H2PtCl6) and Pd precursor (PdCl2) to be catalyst layers and the performance was tested. The experiment results indicated that while the 8wt% of PVP, 2wt% of H2PtCl6 with PdCl2, and the mole ratio of Pt to Pd was 3:1 which acquired the complete fiber with average diameter 44.12 nm. Using the three electrode method for cyclic voltammetry to test the fiber properties of different proportions. Results showed that when the mole ratio of Pt to Pd was 3:1, and the total charge of hydrogen adsorption was 2.45×〖10〗^(-4) C. It was higher than the other mixing ratio of the fiber. The experiment results showed that the possibility which PtPd nanofibers produced by electrospinning method and the application of fuel cells.

第一章 緒論1
1.1 前言1
1.2 文獻回顧3
1.2.1觸媒的材料與形態選用3
1.2.2 靜電紡絲法6
1.3 研究目的7
第二章 實驗規劃9
實驗藥品材料清單9
實驗儀器設備清單10
2.1 高分子溶液調配10
2.1.1 Pd高分子溶液11
2.1.2 PtPd高分子溶液11
2.2 靜電紡絲法製備Pd、PtPd奈米纖維11
2.3 Pd、PtPd奈米纖維穩定化12
2.4 以FE-SEM觀測奈米纖維型態12
2.5 觸媒漿料的配製13
2.6 循環伏安法量測13
第三章 結果討論20
3.1 以靜電紡絲法製作Pd奈米纖維20
3.1.1 高分子溶液濃度對Pd奈米纖維型態的效應21
3.1.2 收集距離對Pd奈米纖維型態的效應22
3.1.3 其他參數對Pd奈米纖維型態的效應23
3.2 電紡系統收集PtPd奈米纖維24
3.2.1 不同的鉑鈀莫耳數比對PtPd奈米纖維的影響25
3.2.2 不同的溶液濃度對PtPd奈米纖維的影響26
3.3 三電極法量測循環伏安圖29
第四章 結論與未來展望42
4.1 結論42
4.2 未來展望43
參考文獻44

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