The evidence of a chemical reaction coupled to the electrochemical process was
obtained by cyclic voltammetry at different scan rates (Fig. 3b). The relative current magnitude of the cathodic signal in comparison to the oxidation signal, associated to the first oxidation process, is much higher with the increase of the scan rate, as it is shown in Fig. 3b. The inset in Fig. 3a shows a differential pulse voltammetry associates to the first oxidation signal. It can be seen in this figure that the width at the half height of the peak is approximately 90 mV. It is evidence that the first oxidation step of piperonyl alcohol is linked to an one-electron transfer reaction.
这段英文是解释这幅图的，可是我看不懂啊，哪位高人帮忙解释一下，我刚接触电化学，什么都不懂啊，谢谢了
主要的问题是，在不同扫速下的CV图怎么跟化学反应过程联系起来，还有那个差分脉冲图怎么就看出是个单电子反应了
D8@[Q_@WCFK$NKB8(7JIW26.jpg
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