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气敏小鼠

新虫 (初入文坛)

[求助] CO传感器膜电极

制备电化学CO传感器膜电极,阳极、阴极两面分别涂覆60%pt/C浆料和30%pt/C浆料,溶剂为去离子、nafion、异丙醇。转印到质子交换膜两边,测试i=t,200s在空气中,200-400s在400ppmCO气体中,400-600s将传感器拿出到空气中。问题:传感器放入CO气体中电流迅速响应,随后衰减,为什么?想到pt CO中毒,阳极面加入了CeO2,阴极面加入了MnO2,依旧衰减厉害,求大佬指教呀!

CO传感器膜电极
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Equinoxhua

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3楼2026-05-24 12:47:04
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