2026-11-092026-11-09https://scholars.csmu.edu.tw/handle/123456789/38661It is now well established that global warming is taking place due to effluent gas emission, mainly CO2. During the past century, global surface temperatures have increased at a rate near 0.6 °C/century. The generation of energy by clean, efficient and environmental-friendly means is now one of the major challenges for engineers and scientists. Today fuel cells are much in the news since they appear to be one of the most efficient and effective solutions to environmental problems that we face today. Fuel cells convert chemical energy of a fuel gas directly into electrical work, and are efficient and environmentally clean, since no combustion is required. Polymer electrolyte membrane (PEM) fuel cells are just being introduced in the market for various applications ranging from mobile phones, laptop computers and residential power generation. However, some technological advancement is yet to be made for widespread market penetration. Carbon monoxide is a known fuel cell catalyst poison even in trace amounts, and is preferentially adsorbed on the catalyst surface. CO concentrations as low as 10 ppm are extremely detrimental to fuel cell performance. This past work shows that while much is known about steady state poisoning with a 100% hydrogen feed containing trace amounts of CO, there is a lack of experimental data to quantify the transient CO poisoning process with diluted hydrogen, which is the actual case for fuel cells being fed a hydrocarbon reformate gas. In addition, even less is known fundamentally about the transient process of fuel cell poisoning with reformate gas. Understanding this process is critical in determining the minimum purity requirements for anode fed gas as well as developing any sort of poisoning remediation method. In this study, the transient behavior of a PEM fuel cell fed on simulated reformate containing diluted hydrogen and trace quantities of carbon monoxide (CO) will be experimentally investigated. The catalysts will be characterize by FESEM, XRD and BET before and after investigated.污染性氣體的排放（如二氧化碳）已被證實與地球暖化有關，且在上個世紀中，地球的表面溫度 正以0.6 °C/century 的速度在增加；因此，如何利用潔淨、有效率且環境友善的方式來產生能源已成 為現今科技發展的主要議題之一。其中，燃料電池由於可避開燃燒程序，直接將可燃性氣體的化學能 轉換成電能，因而被視為是有效率、環境有善的清潔能源之一。 在所有燃料電池中，以質子交換膜燃料電池（polymer electrolyte membrane fuel cells，PEMFC） 較為運輸工具市場的主流，然而其在市場的應用上仍有部分技術瓶頸待突破。其中，一氧化碳即為燃 料電池中觸媒層的主要毒化物，即使在一氧化碳濃度極微小的情況下仍有可能吸附在觸媒的表面，而 導致觸媒失活。研究指出，當一氧化碳濃度小於10 ppm時，才有可能減少對觸媒的毒化行為。 此外，過去的研究亦指出，當燃料電池陽極端的氫氣進氣濃度相當接近100%時，此時即使於進氣 中含有微量的CO氣體，其所產生的毒化行為將較為穩定而不會顯著的影響燃料電池的使用壽命。然 而，燃料電池的實際工作環境並非在極高濃度(~100%)的環境中，此外，燃料電池因CO而瞬間失活的 機制探討仍鮮少見於文獻中。因此，評估不同組成之燃料電池的最適操作條件及其毒化機制，將有助 於燃料電池的商業化應用。 故在本研究中，將針對合作廠商所開發的燃料電池陽極端或陰極端，進行最適操作條件與毒化機 制評估，實驗參數如：氫氣、氧氣、一氧化碳的進氣濃度，燃料電池工作溫度等。觸媒於反應前後亦 將進行FESEM、XRD、BET等特性分析。清潔能源觸媒燃料電池一氧化碳毒化Clean energyCatalystFuel cellCarbon monoxide poisoningProject