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孤独的Master儿

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[交流] 阴离子交换膜电解槽电压衰减原因

我用买来的阴极电极(Pt/C负载碳布上)和自制通过反复确定和认证稳定的阳极催化剂去装AEMWE在新威5V6A的工作站1A电流恒流充电,20h电压衰减就0.02V,然后测试阻抗没有变化,在接上去测试,刚开始的性能比第一次循环起始点的电压低一些,然后继续衰减。起始电位差应该跟电极夹接触的原因,为什么后面同样衰减呢,如果催化剂和膜降解测试阻抗的时候应该有很大的差别,欧姆阻抗0.24和0.25的差距。阻抗是用辰化测试的,没有电流放大器所以用新威测恒电流的电压稳定性
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