Abstract Polymer electrolyte membrane fuel cells (PEMFC) have received much attention due to their high power density, good start-stop capabilities and high gravimetric and volumetric power density compared with other fuel cells. However, certain technological challenges persist, which include the fact that conventional anode electrocatalysts are poisoned by low levels (few ppm) of carbon monoxide (CO). This review considers the mechanism of CO poisoning and the effects that it has on the PEMFC performance. The key parameters affecting CO poisoning are identified and methods used to mitigate the effects are discussed. These mitigation strategies are divided into three groups according to the means by which the technologies are applied: pre-treatment of reformate, on board removal of CO and in operando mitigation strategies.

中文翻译：

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聚合物电解质膜燃料电池的一氧化碳中毒和缓解策略——综述

摘要 聚合物电解质膜燃料电池（PEMFC）由于与其他燃料电池相比具有高功率密度、良好的启停能力以及较高的重量和体积功率密度而备受关注。然而，某些技术挑战仍然存在，其中包括传统阳极电催化剂会被低水平（几 ppm）的一氧化碳 (CO) 毒害。本综述考虑了 CO 中毒的机制及其对 PEMFC 性能的影响。确定了影响 CO 中毒的关键参数，并讨论了用于减轻影响的方法。根据应用技术的方式，这些缓解策略分为三组：重整油的预处理、CO 的船上去除和操作中的缓解策略。