Reference electrode used while running CV of the prepared supercapacitor *1 pointAg/AgClCalomel electrodeHg/HgOStandard Hydrogen electrode

The reference electrode used while running Cyclic Voltammetry (CV) of the prepared supercapacitor can vary depending on the specific requirements of the experiment. However, the most commonly used reference electrodes are:

1. Ag/AgCl (Silver/Silver Chloride) Electrode: This is a commonly used reference electrode in electrochemical experiments due to its stable and well-defined reduction potential. It is often used in aqueous solutions.

2. Calomel Electrode: This is another type of reference electrode that is often used in electrochemical experiments. It has a stable potential and is suitable for use in a wide range of conditions.

3. Hg/HgO (Mercury/Mercury Oxide) Electrode: This electrode is often used in alkaline solutions. It has a stable potential but is less commonly used than the Ag/AgCl or Calomel electrodes.

4. Standard Hydrogen Electrode (SHE): This is the standard reference electrode against which all other electrodes are compared. It is not typically used in practical experiments due to its complexity and the difficulty of maintaining it.

The choice of reference electrode will depend on the specific requirements of your experiment, including the type of electrolyte used, the potential range of interest, and the stability of the electrode.