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诗湘子

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拼命三娘

[求助] 论文审稿意见中关于CVs表面控制过程的问题求助 已有1人参与

论文中有一段关于CVs的描述:
在扫速为20 mV s-1时,氧化还原峰电位差60 mV,表面反应为快速的电子转移过程。扫速20 mV s-1到200 mV s-1增加,氧化峰电流和还原峰电流均与扫速呈线性增加,表明surface-controlled electrochemical process。
结果审稿意见为:
First of all, a theoritical peak separation of 0mV is expected for a fast and reversible surface-confined process (see Bard and Faulkner). A peak separation of 60 mV would suggest a diffusion controlled process. However, a linear current dependance towards scan rate is indicative of a surface -controlled process.
A peak-to-peak separation of 60 mV for a surface-confined process is high as compared to the theoretical 0 mV. The electron transfer can therefore not be considered as "rapid and reversible". Could the authors modify the discussion?

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truemoon

铁杆木虫 (正式写手)

【答案】应助回帖

感谢参与,应助指数 +1
找这篇文献看看48        E. Laviron, J. Electroanal. Chem., 1979, 100, 263-270.,里面就是讲的表面控制是如何定义的,我当时也碰到类似的问题,我觉得你解释清楚就行了,稍微偏离点他的问题也就过去了。
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2楼2016-06-14 09:50:41
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meihe541

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3楼2016-06-14 12:35:08
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