Proton exchange membrane fuel cells (PEMFCs) are considered among the most promising technologies for hydrogen utilization in both stationary and transport applications. Nevertheless, the cost of its components – especially the catalyst and the membrane – is still consistent and far from the cost predicted by the US Department of Energy. It is therefore essential to predict the effect of contaminants on PEMFC materials and to estimate their useful life. The literature on this topic is consistent, but the absence of standards for the experimental tests under contaminated flows makes it difficult to extrapolate the generic degradation trends and compare the results of different publications. This work aims to collect and interpret the results of the recent studies on catalyst contamination: the voltage degradation rate and reduction effect are defined via a data modeling work to understand and compare the effects of different contaminants, their concentrations, exposure times, and current densities. Thanks to the results of the present study, some conclusions are drawn regarding the impact of the different pollutants on cell voltage decay, with attention dedicated to establishing a correlation that takes into account also the different operating conditions.

中文翻译：

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不同测试和中毒条件下的催化剂降解——比较参数定义以绘制对质子交换膜燃料电池电压的影响

质子交换膜燃料电池 (PEMFC) 被认为是在固定和运输应用中最有前途的氢利用技术之一。尽管如此，其组件的成本——尤其是催化剂和膜——仍然是一致的，与美国能源部预测的成本相去甚远。因此，必须预测污染物对 PEMFC 材料的影响并估计其使用寿命。关于该主题的文献是一致的，但由于缺乏污染流下实验测试的标准，因此很难推断一般的降解趋势并比较不同出版物的结果。这项工作旨在收集和解释最近关于催化剂污染的研究结果：电压降级率和降低效果通过数据建模工作定义，以了解和比较不同污染物的影响、它们的浓度、暴露时间和电流密度。由于本研究的结果，得出了一些关于不同污染物对电池电压衰减的影响的结论，并专注于建立一种相关性，该相关性也考虑了不同的操作条件。