In cyclic voltammetry, what is the charge (positive or negative) on working electrode at anodic peak. What is the charge (positive or negative) on the working electrode when negative and positive potential is applied? Should be the anodic peak always in positive potential and cathodic peak in negative potential? Oxidation peak is anodic or cathodic? I am getting both the peaks in positive potential, is it ok? what is the reason?
Take a look to this link: https://chem.libretexts.org/Bookshelves/Analytical_Chemistry/Supplemental_Modules_(Analytical_Chemistry)/Instrumental_Analysis/Cyclic_Voltammetry#:~:text=Cyclic%20Voltammetry%20(CV)%20is%20an,and%20measuring%20the%20resulting%20current.
It is a bit complicated, but the simple answer to your question is, yes, you can get both the anodic and cathodic peaks in the same potential range. It all depends on the standard (formal) potential of the particular redox couple you are studying. The easiest way to remember the difference between the two types of peaks is that, if you are scanning in a positive direction, that is, from more negative to more positive potentials (or less positive to more positive or more negative to less negative potentials when you are in the same potential range), the CV wave you observe is the anodic (oxidation) peak and vice versa for the cathodic peak. It may seem complicated, but once you learn about CV, you'll be able to understand a lot about the redox couple you are studying. It is a very powerful analytical technique.
Dear Ajinkya Dabhade this article will be helpful to understand details about CV
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