The cells were assembled by fixing the working
electrode and the counter electrode by paper clips with a
spacer between the electrodes. The redox electrolyte solution
was composed of 2 mL acetonitrile (ACN), 8 mL propylene
carbonate (p-carbonate), 0.668 mg potassiumiodide (KI), and
0.0634 mg iodine (I2). The redox electrolyte solution was
sandwiched between the two electrodes