The Performance of Active Carbon Adsorbed with Cu(II)-picolinic Acid Complex as Electric Double Layer Capacitor (part 2)

Abstract

We have already reported about the performance of active carbon adsorbed with Cu(II)-picolinic acid complex. The capacitor showed higher capacitance than normal activated carbon. In this report, we have used another kind of AC and electrolyte. We could observe it’s accurate oxidation-reduction reaction by cyclic voltammetry and constant current electrolysis. We also comfirmed Cu(II)-picolinic acid complex’s disorption from the AC in the 4 M H₂SO₄/H₂O. The cause of disorption is form of Cu(II)-picolinic acid in the low pH. We change electrolyte into 3.5 M NaBr/H₂O and the disorption is suppressed.