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首页> 外文期刊>Journal of power sources >Effect of CO in the anode fuel on the performance of PEM fuel cell cathode
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Effect of CO in the anode fuel on the performance of PEM fuel cell cathode

机译：阳极燃料中CO对PEM燃料电池阴极性能的影响

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摘要

Even trace amounts of CO in the fuel for a proton-exchange membrane fuel cell (PEMFC) could poison not only the anode, which is directly exposed to the fuel, but also the cathode, which is separated from the fuel by a proton-exchange membrane; and the performance decline of the cathode is sometimes more than that of the anode. Adsorption of CO on the cathode catalyst has been detected electrochemically, and this indicates that CO can pass through the membrane to reach the cathode. To reduce such a poisoning effect, fuel cell operation conditions (e.g. level of membrane humidification, gas pressure difference between cathode and anode), membrane and catalyst layer structures, and CO-tolerant cathode catalysts should be further explored.
机译：质子交换膜燃料电池（PEMFC）的燃料中甚至微量的CO都不仅会毒化直接暴露于燃料的阳极，还会毒害通过质子交换与燃料分离的阴极膜;阴极的性能下降有时会大于阳极。电化学检测到CO在阴极催化剂上的吸附，这表明CO可以穿过膜到达阴极。为了减少这种中毒效应，应进一步探索燃料电池的运行条件（例如，膜的加湿水平，阴极与阳极之间的气压差），膜和催化剂层的结构以及耐CO的阴极催化剂。

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