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cherubruby

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[求助] 如何使用cv计算速率常数? 已有1人参与

已知物质A发生EC反应,电极反应可逆,化学反应不可逆。
主要是不太明白如何将速率方程和扫描速率结合在一起。(实际是一道考试题……看了很多资料都没搞懂,老师不提供答案)谢谢大佬解答!

如何使用cv计算速率常数?


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小毛球

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cherubruby: 金币+5, ★★★★★最佳答案 2020-08-04 19:29:58
For a reversible reaction, ip∝ v^1/2,since the electrode reaction is reversible while the fragmentation reaction is irreversible, the different between cathodic peak current density icp and anodic peak current density iap should be responsible for the a-* consumption, then you can determine k
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2楼2020-08-04 06:54:49
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cherubruby

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引用回帖:
2楼: Originally posted by 小毛球 at 2020-08-04 00:54:49
For a reversible reaction, ip∝ v^1/2,since the electrode reaction is reversible while the fragmentation reaction is irreversible, the different between cathodic peak current density icp and anodic  ...

Sorry the computer in the campus dont provide chinese input method... Really thank you for the explanation. I now figure out how the rate constate relates to the current density but still feel confused about the function of the halfwave potential during a CV exp. Could you please help or suggest a book or an article? Thank you!
3楼2020-08-04 19:36:43
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小毛球

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3楼: Originally posted by cherubruby at 2020-08-04 19:36:43
Sorry the computer in the campus dont provide chinese input method... Really thank you for the explanation. I now figure out how the rate constate relates to the current density but still feel confu ...

《Electrochemical Methods Fundamentals and applications》 by Allen J. Bard, this book is really classic
天行健,君子以自强不息;地势坤,君子以厚德载物。
4楼2020-08-04 21:46:05
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