Nafion degradation in PEFCs from end plate iron contamination
Nafion degradation in PEFCs from end plate iron contamination
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DOI：
10.1016/s0013-4686(03)00026-4
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发表时间：
2003-05
影响因子：
6.6
通讯作者：
A. Pozio;R. F. Silva;M. D. Francesco;L. Giorgi
中科院分区：
文献类型：
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作者：
A. Pozio;R. F. Silva;M. D. Francesco;L. Giorgi
在单电池配置中测试了聚合物电解质燃料电池中来自SS316L端板铁污染的Nafion降解。通过pH测量、电导率、氟化物和金属浓度对在阴极和阳极排气处收集的水进行分析。研究表明，不锈钢不适合作为PEM燃料电池端板的材料。事实上，铁污染的膜电极组件导致聚合物降解，揭示了大量的氟损失。相比之下，不含铁的板（铝合金）在电池环境中显示出更高的稳定性。
Nafion degradation in polymer electrolyte fuel cells from SS316L end plate iron contamination was tested in a single cell configuration. Water collected at the cathode and anode exhausts was analysed by means of pH measurements, conductivity, fluoride and metal concentration. The investigations revealed that stainless steel is unsuitable as material for end plates in PEM fuel cells. In fact, iron contamination of membrane electrode assemblies led to polymer degradation, revealed by a massive fluoride loss. In contrast, iron-free plates (aluminium alloy) showed higher stability in the cell environment.