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sthardwork

新虫 (初入文坛)

[求助] 关于微生物燃料电池中的工艺问题

各位大神,小弟刚做单室空气阴极的微生物燃料电池。我是直接在质子交换膜PEM上面刷上一层Pt/C催化剂,用nafion溶液做粘结剂的。但是在组装的时候,发现在质子交换膜PEM上的Pt/C催化剂有脱落的现象,就是说我直接在PEM上面弄上一层催化剂效果不太好,但是我们实验室做不了热压,求助各位大神有没有什么好的方法直接将催化剂弄到PEM又不致脱落。谢谢!
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wxhit

木虫 (小有名气)

【答案】应助回帖

首先,Nafion上刷Nafion-Pt应该能粘住的吧,我没刷过。我猜可能是由于Nafion在水中胀开导致催化剂脱落。可否试试将Nafion膜先浸泡24h然后再刷催化剂?Nafion溶液粘附力应该是没什么问题的。PS:为啥非把催化剂刷到Nafion膜上呢?Nafion那么贵。试试Ultrex吧
2楼2013-02-19 22:06:23
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