I want to take the Cyclic voltammetric analysis for supercapacitor application. In cyclic voltammetry, how to fix potential sweep rate range for my prepared electrode sample? Pls explain in detail. Thank you in advance.
This can be done with the help of a Potentiostat. Potentiostat has a knob to select "Initial Potential" and another knob to select the "final Potential". In addidtion to theses knobs, it has a knob "Scan rate/Sweep rate" which is to be put at the desired scan rate. The generated current is recorded on a X-Y recorder or on computer screen. The potentiostat has three connecting ports to connect "working electrode", "Reference electrode". and "Counter electrode" . Similarly, there three connecting ports for the 'out put" which are to be connected to recorder. So, if you have a potentiostat, you can do what you want to do. Any further query?
Dear Prof. Lal Bahadur.
Thank you for your response. I am working with metal oxides (Mn, Co, Fe) for supercapacitor applications. In CV analysis, how to fix the potential sweep rate in Potential vs Current plot. Explain how to fix the potential range for metal oxide electrodes.
The common practice is to use 50 to 500 mV/s as sweep rate in CV. For the first try start with 100 mV/s. Your objective is to have the redox peaks well profiled.
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