关键词: 间接氧化, 气体扩散电极, 酸性嫩黄2G

Abstract: The acid flavine 2 G simulated wastewater was electrolyzed with membrane structured gas diffusion electrode (GDE) . The appropriate preparation conditions were discussed based on the experiment. According to the polarization curve and electronic microscopic pictures of electrodes, the reason of electrode performance improvement was analyzed. The results show that the optimal proportion of preparation conditions is ascertained. The proportion of graphite, PTFE and cavitiesmaking reagent is 1∶0.5∶0.05, and the Pt dosage is 1.5mg/cm². The main reason of electrode performance improvement is the large quantities of gas cavities formed by poreforming material and the enough dissolved oxygen formed by aeration, which can create H²O².

Key words: indirectly oxidization, gas diffusion electrode, acid flavine 2G