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北京石油化工学院2026年研究生招生接收调剂公告
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sunnyf

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[交流] 循环伏案图分析 已有1人参与

想问一下,有两个循环伏案图。第一个氧化峰和还原峰比较相似。可逆性很好。另一个图形中氧化峰又高又尖而还原峰比较圆。这如何解释呢

这是代表阴离子掺杂进去快么,才会出现尖峰。
圆缓的峰是因为阴离子脱出时速度慢么?
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sunnyf

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2楼: Originally posted by renchaoyan at 2012-09-05 15:46:35
I think I know your case now but that is really a question on methodology.  Objectively, it is impossible to recognize the potential range in reduction before CV, except for following related researc ...

我做的是两阴离子的掺杂。所以图形不一样。位置都是相同的。只是一个尖峰一个圆峰
3楼2012-09-06 13:27:31
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renchaoyan

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I think I know your case now but that is really a question on methodology.  Objectively, it is impossible to recognize the potential range in reduction before CV, except for following related research papers.  When doing research in reduction, it is a tradition to begin the scan in negative direction forward. During the cycle, oxidation wave may appear or disappear when scan turn around to more positive potential than the incipient one you set before. So there is not any necessity whether the disappearance of oxidation wave will be better in CV. If there is signal of anode current, you can better understand more properties on electrode surface. So it is totally dependent on your experiment design and your analysis from CV diagram
加油,你行的!!!
2楼2012-09-05 15:46:35
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