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mygalaxy1977

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[求助] 请帮忙看看这个循环伏安曲线

对图片的说明文字如下:
The cyclic voltammogram  of 4-nitrobenzene-diazonium tetrafluoroborate on a Courtauld XAU fiber electrode (Fig. 1a) in aprotic medium (acetonitrile-ACN-+0.1 M NBu4BF4) presents an monoelectronic irreversible wave at a very positive potential (Ep=-0.01 V/SCE), followed by a second wave.
现有几个问题:
(1) 文中说是“an monoelectronic irreversible wave”, 怎么能看出是单电子反应?怎么看出是不可逆的反应?
(2) a second wave在什么位置,没看出来。

循环伏安曲线
(3) 对于图b, 说明文字是"The shape of this voltammogram is clearly indicative of a process where the species involved do not diffuse to and from the electrode". 如何看出species不扩散到电极,也不从电极扩散。
(4) 对于图c, 说明文字是"a nearly six electron voltammetric wave is then observed, on the backward scan a small anodic wave appears which corresponds to the reoxidation of the 4-hydroxylamino phenyl groups formed as intermediates of the reduction", 如何能看出是六电子反应?

[ Last edited by mygalaxy1977 on 2012-3-13 at 22:14 ]
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mygalaxy1977

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2楼2012-03-15 09:11:52
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