The synthesis and characterization of Ti/SnO2-Sb2O3/PbO2 electrodes: The influence of morphology caused by different electrochemical deposition time

► The Ti/SnO2-Sb2O3/PbO2 anodes is prepared by anodic deposition under galvanostatic conditions and phenol is taken as the model pollutant to evaluate the electrocatalytic activity. ► Electrochemical deposition time is an important parameters that affects the crystal structure and surface roughness of the metal oxide electrode. ► Electrode surface properties exhibit a direct impact on the electrocatalytic activity, and the best electrocatalytic activity is achieved at the optimal time of 30 min. ► At this optimal time, we get the best combination of PbO2 and the SnO2-Sb2O3 interlayer, which means the optimum combination of the compact and crack-mud structure.