I want to take cv. My initial and final potential are 0.04 and 1.2 respectively. In this case, what will be my vertex potential 1 and vertex potential 2? Is there any condition to determine vertex potential 1 and vertex potential 2?
Thanks in advance .
Dear sir,thank you very much. I read this Manuel.but according to your answer ,initial and vertex potential 1 are same. And,final potential and vertex potential 2 are same. Is it?
It is common to measure OCP before a CV and to start a CV from OCP.
The vertex potentials are the potential limits of the scan (where the sweep direction is reversed) .
It is also common to end the CV at the second vertex.
In your case: start at OCP, VP1 = 40 mV and VP2 = 1200 mV.
Dear Sir, Thank you very much. Its meaning, initial and vertex potential 1 are same. And,final potential and vertex potential 2 are same.
No! No! No!
Rule 1: measure OCP and start any CV at its potential value (to avoid excessive and irrelevant high initial current)..
Rule 2: choose the start direction of scanning (from OCP to first vortex/reversing potential VP1). The first/entry sweep is from OCP to VP1 (thus OCP and VP1 are different).
Rule 2: define a relevant potential window/range for scanning (OCP is between VP1 and VP2).
Rule 3: the best practice is to have complete cycles. If a scanning cycle starts at VP1 , it also ends at VP1. Thus VP2 may be the final potential only as an exception.
Example: you choose VP1 (40 mV)
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