Requirements:

Ferrocene, dichloromethane, tetrabutylammonium tetrafluoroborate, sulfuric acid, ethanol.

Procedure:

● Clean the electrodes and the electrochemical cell with double-distilled water.
● The glassy carbon electrode is used as a working electrode, the saturated calomel electrode as a reference electrode, and the platinum wire electrode as an auxiliary electrode.
● For this experiment, prepare two solutions: solution A and solution B.
● For solution A, weigh 0.018gm of ferrocene and 3.29gm of tetrabutylammonium tetrafluoroborate (Bu 4 NBF 4 ).
● Transfer these salts to a clean 100ml volumetric flask and make up with dichloromethane (CH 2 Cl 2 ).
● For solution B, in another 100ml volumetric flask, add 0.018gm of ferrocene, then use a pipette to add 1.76ml aqueous H 2 SO 4 , and make up to 100ml using ethanol.
● Pour 10ml of solution A and solution B into the electrochemical cell, one after the other, then initiate the cyclic voltammetry measurement to record the CV curve.
● Cyclic Voltammetry (CV) Parameters:

• Initial Potential: 0.0 V
  
• Final Potential: 0.6 V
  
• Scan Rate: 10 mV/s
  
• Quiet Time (Equilibration Time): 5–10 s
  
• Sweep Segments: 2
  
• Graphs A and B represent a glassy carbon electrode voltammetry of ferrocene in an organic medium and an aqueous medium.