Preparation parameters.

Experimental parameter	Values
T on–Toff	10–10, 30–30, 50–50, 70–70, 90–90 (μs)
Discharge time	5 min
Electrode diameter	Anode & cathode: pure platinum wire (99.5%): 1 mm
Dielectric fluid	DI water: 199.5 mL, liquid iodine (10% w/v): 0.5 mL
Volume of the dielectric fluid	Liquid iodine (250 ppm): 200 mL
Voltage	240 V
Temperature	25 °C (room temperature)
Atmospheric pressure	1 atm