对膜电极进行寿命表征通常采用传统三电极体系或单电池。为结合两种体系的优点，弥补其不足，本论文设计并加工了适用于实验室条件下使用，能在与实际运行环境接近的条件下评价燃料电池膜电极材料电化学性能和稳定性的表征装置。通过不断改进和优化，保证了该装置在寿命表征过程中的稳定性。利用该装置进行了模拟直接甲醇燃料电池(DMFC)全电池寿命实验、E-TEK阳极气体扩散电极(GDE)半电池加速老化实验和Pd掺杂Nafion膜作为支持电解质膜的阳极半电池加速老化实验。将电化学分析手段和ICP-MS相结合，获得了相互印证的电化学和元素分析数据，从而验证了膜电极电化学表征装置的稳定性和实用性。 结果表明，商用E-T...Degradation of membrane electrolyte assemblies (MEAs) is commonly analyzed either in traditional three-electrode systems or in single cells. In order to combine the advantages of both three-electrode systems and single cells, as well as to overcome their limitations, the improved electrochemical devices applied for MEAs’ analysis were designed and implemented in this work. This type of electrochem...学位：理学硕士院系专业：化学化工学院化学系_物理化学(含化学物理)学号：2052006115197
