為解決燃料電池的燃料的攜帶問題，本研究採用甲醇重組式燃料電池的概念，將液態甲醇經由蒸發器再透過反應轉換成氫氣後導入電池作為燃料，為了能直接利用甲醇重組器所產生的氫氣及其餘產物，結合具有較佳抗一氧化碳能力且操作溫度接近重組器的磷酸燃料電池作為發電系統。本研究所使用的磷酸燃料電池質子交換膜為玻璃纖維/聚四氟乙烯複合膜。複合膜的概念為結合兩材料之特性，內層微米等級孔徑的玻璃纖維擁有很高(93%)的孔隙率，使其得以吸收足量之磷酸電解質而擁有良好的質子傳導能力；外層奈米孔徑的聚四氟乙烯薄膜透過物理夾和的方式構成一層緻密的防磷酸洩漏膜，單電池測試的功率密度最高可達614mW/cm2。
　　本研究提出甲醇部分氧化重組反應(POM)、氧化性甲醇蒸氣重組反應(OSRM)兩類重組反應系統。POM反應為甲醇與氧氣反應產氫的過程，此過程為一放熱反應，可省去額外燃料電池系統中需要額外熱源的困擾，本研究中的銅錳鋅多元觸媒在相對低溫下(<200℃)進行POM反應即可擁有70~90%的甲醇轉換率與70~80%的氫氣轉換率。將操作在180℃的POM微型重組器所生成的所有氣體導入操作在140℃的玻璃纖維/聚四氟乙烯複合膜磷酸燃料電池的陽極中，陰極通入100sccm氧氣，可得132mW/cm2的最大功率密度。
　　而在使用自身可達熱平衡的OSRM重組反應的系統中，首先以150℃的微型甲醇蒸發器將混合物反應物中的甲醇氣化並使雙氧水自分解生成氧氣和水，氧氣與水再於280℃的重組器中的銅鈀鈰鋅觸媒分別和甲醇進行重組反應，重組產物經由一除水裝置後進入140℃的玻璃纖維/聚四氟乙烯複合膜磷酸燃料電池的陽極中，陰極進料為100sccm氫氣，可得最高功率密度196mW/cm2。

To overcome the portage issue of the fuel for fuel cells, reformed methanol fuel cell is chosen to be the electricity generation system of this study. In order to match the operating temperature of the methanol reformer and tolerate the small amount of carbon monoxide produced by reformer, phosphoric acid fuel cell (PAFC) is chosen to be the fuel cell system due to its high carbon monoxide tolerance and operating temperature (120~220℃). In this study, glass-microporous-fiber with polytetrafluoroethylene (GMF/PTFE) composite membrane is carried out. The composite membranes combine their advantages. The inner glass microporous fiber has large porosity (93%), which leads to high electrolyte content and high proton conductivity; while the outer films consists of nano-pores which can prevent phosphoric acid from leaking. For single cell test, the maximum power density achieved 614mW/cm2.
Partial oxidation of methanol (POM) and oxidative steam reforming of methanol (OSRM) systems are applied in this study. The micro POM methanol reformer has a high (70~90%) methanol conversion rate and a high (70~80%) hydrogen selectivity at relatively low temperature (less then 200℃). For the integration test of the micro methanol reformer and GMF/PTFE phosphoric acid fuel cell, the cell performance operating at 140℃ achieves 132mW/cm2 power density by operating reformed gas from the 180℃ reformer as fuel and 100sccm oxygen as oxidant.
In the system integration of OSRM reformer and GMF/PTFE PAFC, a micro-evaporator is installed in the front of the reformer. In the evaporator, methanol evaporates and hydrogen peroxide self-decomposes to oxygen and water. The mixture is then reacted with methanol into hydrogen with the aid of Cu/Pd/Ce/Zn catalyst. For the single cell test of the GMF/PTFE PAFC, the cell performance operating at 140℃ achieves 196mW/cm2 power density by operating reformed gas from the 280℃ reformer as fuel and 100sccm oxygen as oxidant.

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