Effect of Relative Humidity on Contamination of Cathode and Anode Electrodes by Sulfur Dioxide in Air Stream in PEMFC
Effect of Relative Humidity on Contamination of Cathode and Anode Electrodes by Sulfur Dioxide in Air Stream in PEMFC
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DOI：
10.1149/1.2981945
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发表时间：
2008-08
期刊：
影响因子：
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通讯作者：
S. Tsushima;H. Morioka;K. Kaneko;S. Hirai
中科院分区：
文献类型：
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作者：
S. Tsushima;H. Morioka;K. Kaneko;S. Hirai
阳极和阴极馈电中的杂质对PEMFC的性能有显著的不利影响。有报道称，含硫化合物对铂催化剂的毒害是严重的，并且pemfc的性能会不可逆地降低。实验在水溶液[2]或膜电极组件（MEAs）[3]中进行。在PEMFC系统的实际应用中，燃料电池需要经历各种工况才能满足外部负载和/或热量供应的需求。在这项研究中，我们检查了燃料和气流中的相对湿度对阳极和阴极电极被二氧化硫污染的影响。我们把注意力集中在燃料电池中二氧化硫的吸收和运输上。
Impurities in the anode and the cathode feed are dramatically detrimental to the PEMFC performance. It has been reported that poisoning of platinum catalysts by sulfur containing compounds is serious and that the performance of the PEMFCs is irreversibly lowered [1]. Experiments were performed either in aqueous solution [2] or in membrane electrode assemblies (MEAs) [3]. In practical application of PEMFC systems, fuel cell experiences various operating conditions to meet demand for external load and/or heat supply. In this study, we examined effect of relative humidity in fuel and air streams on contamination of anode and cathode electrodes by sulfur dioxide. We focused our attention on absorption and transport of sulfur dioxide in the fuel cell.