Should the CV curve of the KCl solution be flat?
Or there is a problem with the rate on my measurement, which causes it to have a peak.
Reference electrode is Ag/Agcl
Scan Rate = 50 mV/s (step 5mV/Delay time 100ms)
Scan Range : -0.2V~0.6V
The solvent is distilled water.
Blue line is from -0.2V to 0.6V
Red line is from 0.6V to -0.2V
Hi. Flat or not flat depends on the scale. looking at the graph it seems that the currents recorded are in the microampere scale. Your profile is actually flat for most applications.
Regards
Hello, you did not mention your working electrode. The voltammetric curve is not typical for conventional electrodes. You should check the purity of the solution and electrode.
firstly, one must know what kind of working electrode is used, and work much more in the range 0.2 to 0.6 V ( going) and 0.6 to 0.2 V (return).
Yes. The question has no meaning without defining the electrode material...
The results will be very different for mercury, platinum, gold, and glassy carbon, for example. THE SURFACE AREA of the electrode will be very important to the current scale. We can't tell if this is a large or small response without knowing the
electrode surface area.
Thank you for your replies. I am very sorry that I forgot to mention my working electrode.
The working electrode material I used is gold
I have not reviewed the literature, but you should consider gold salts formed with chloride as a possibility. Gold is not so "inert" as might be thought at first.
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