直接甲醇燃料电池(DMFC)是一种不需要燃料重整器而以甲醇直接进料的电化学装置.DMFCs的技术水平目前处于大规模商业化的准备阶段.鉴于DMFC商业化的主要障碍之一是甲醇渗透问题,全面解决甲醇渗透问题取决于许多因素,重点有以下几个方面:(1)改进电解质隔膜性能,(2)控制甲醇进料浓度,(3)改善电极催化活性,(4)改进MEA的结构及电池组装技术,(5)用其他醇取代甲醇,(6)用阴离子交换膜取代Nafion膜开发碱性DMFC.提供一种质子传导率高,而又能显著降低甲醇渗透率的新型质子膜是上述诸因素中最有效的措施之一.
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