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痕亦泠

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[求助] 1.裸金电极在H2SO4中活化0.6V 和 1V左右有小峰, 2. PBS中-0.1和+0.3V出峰,怎么消除

1.第一和二张图是裸金电极在0.5M H2SO4中活化,感觉磨的还可以啊,氧化的三个峰差不多出现了,还原峰也很强,但就是0.6和1V会出现小峰 10-7A强度。另外图1和图2 氧化峰三个爪不太一样,哪个更好一点?
2. 第三张图是用这样的裸金电极在PBS中扫DPV, 会出现两个峰。目前已经换过Pt电极,PBS换成KCl溶液,但这两个峰一直存在。被指出-0.2V这个峰可能是溶液中O2造成的,接下来打算通N2来看看,如果消除了会来更新下。另一个峰怎么消除?
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