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中文摘要：
质子交换膜燃料电池（PEMFC）广泛采用重整气为燃料。其存在的主要问题是重整气中含有一定浓度的CO（5×10^-5～10^-2），CO在Pt表面具有强烈的吸附作用，使电催化剂“中毒”。通过对提高质子交换膜燃料电池抗CO问题进行研究，在阳极扩散层流场侧担载催化剂（Pt、PtRu）的方法对电极进行修饰，在注入较少量氧化剂（体积百分比为2％的空气）的条件下使电池抗CO性能显著增强，且可以避免电极局部温度过高及可能带来的安全性问题。
英文摘要：
Proton exchange membrane fuel cells use reforming gas as fuel widely, which always may contain certain amount of carbon monoxide（5 × 10^-5-10^-2）. CO can strongly adsorb on the Pt catalyst surface and cause consider-able cell performance losses. In order to improve PEMFC CO tolerance, a novel PEMFC anode configuration was proposed. A layer of catalyst was placed on the gas diffusion layer, close to the anode flow field. With a small amount of air （2%） injection, this novel anode configuration can enhance PEMFC CO tolerance, and avoid local high temperature that may damage fuel cell membranes and reduce life.
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