以苯酚选择性氧化合成苯醌为模型反应,考察不同双金属、金属质量分数、金属原子比和溶液不同氧含量等因素对改性单壁碳纳米管阴极电极性能的影响.结果显示经金属质量分数为20%,Ag/Co(金属原子比)=2∶1改性的单壁碳纳米管阴极电极能有效催化激活分子氧,提高苯醌收率及其选择性.
The selective oxidation of phenol in water solution was studied.The effects of different bimetallic,metal mass fraction,bimetallic atomic ratio,and the oxygen content of the solution were investigated to optimize the performance of the modified Single-wall Carbon Nanotubes (SWNTs) cathode.The results show that the SWNTs cathode modified by Ag/Co bimetallic (20% wt,atomic ratio 2∶1) could effectively activate the dioxygen,and enhance the benzoquinone yield and the selectivity of phenol oxidation.