Surface conductivity and stability of metallic bipolar plate materials for polymer electrolyte fuel cells
Surface conductivity and stability of metallic bipolar plate materials for polymer electrolyte fuel cells
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DOI：
10.1016/j.electacta.2005.10.015
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发表时间：
2006-04
影响因子：
6.6
通讯作者：
R. F. Silva;D. Franchi;A. Leone;L. Pilloni;A. Masci;A. Pozio
中科院分区：
文献类型：
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作者：
R. F. Silva;D. Franchi;A. Leone;L. Pilloni;A. Masci;A. Pozio
在PEFC阳极和阴极环境的典型条件下，根据界面接触电阻（ICR）和耐腐蚀性，对不同类型的商业不锈钢、镍基合金和氮化物涂层钢作为金属双极板进行了评价。结果表明，不锈钢具有较高的ICR，在阳极和阴极都有腐蚀。此外，虽然镍基合金显示出与石墨相当的ICR，但它们在腐蚀性酸性介质中的行为并不令人满意。只有氮化物涂层不锈钢被证明具有低ICR和非常好的耐腐蚀性。
Different types of commercial stainless steels, Ni-based alloys and nitride-coated steels were evaluated as metallic bipolar plate in terms of interfacial contact resistance (ICR) and corrosion resistance in conditions typical of PEFC anode and cathode environments. Results show that stainless steel have a high ICR and undergo corrosion in both anode and cathode. Moreover, although Ni-based alloys showed an ICR comparable with graphite, their behaviour was not satisfactory in corrosive acidic medium. Only nitride-coated stainless steel demonstrated to have low ICR and very good corrosion resistance.