| 초록 |
Different types of deposition of PbO2 become intensive among researchers due to many factors that include less commercial availability and importantly its good resistance to corrosion, long lifetime, low cost, and high over potential for oxygen evolution in electrolysis. However, pure PbO2 is easily deactivated due to the fouling of electrode deposited by organic contaminates. In order to improve the PbO2 activity and long time stability, types of additives such as SnO2, SbO2, Ni, Co, Bi, surfactant and resins like PTFE and solvents like acetonitrile, and n-butanol etc. were used. The present study mainly focused on sol-gel and electrochemical coating in combination of aqueous and non-aqueous medium to improve the stability of the PbO2 electrode. Optimum experimental conditions were determined for both techniques. The prepared electrodes were analyzed by scanning electron microscope (SEM) method, voltage/current curve (V-I) test, cyclic voltammetry (CV) experimental, electrode impedance test, and the electrochemical stability test. |
