Fe修饰多壁碳纳米管电极高效产H_2O_2

Fe-modified Multi-walled Carbon Nanotube Electrode for Production of Hydrogen Peroxide

为提高电芬顿(Electro-Fenton)体系H2O2的产率,制备了多壁碳纳米管(MWNT)电极,并与石墨/气体扩散(GDC)电极进行了比较.结果表明,MWNT电极H2O2产率高于GDC电极.采用电沉积方法,制备了Fe修饰MWNT(Fe-MWNT)电极,发现Fe对MWNT电极的修饰不仅可以提高体系的H2O2产率,而且电流效率可以提高8%左右,与GDC电极的电流效率接近.Fe-MWNT电极有望成为一种新型的阴极材料应用于Electro-Fenton体系中.

To improve the production efficiency of hydrogen peroxide in Electron-Fenton system, multi-walled carbon nanotube （MWNT） electrode was prepared. Compared with graphite/gas diffusion cathode （GDC） electrode, the MWNT electrode showed higher hydrogen peroxide production efficiency. The Fe-modified MWNT （Fe-MWNT） electrode was prepared using the electro chemical deposition method. The as prepared Fe-MWNT electrode showed higher hydrogen peroxide production efficiency, and the average current efficiency increased by 8% after Fe modification in comparison with the unmodified MWNT. The average current efficiency of the Fe-MWNT electrode was close to that of the GDC electrode. The Fe-MWNT electrode is a novel promising cathode material for application in the Electron- Fenton system.