Phenol degradation on novel nickel-antimony doped tin dioxide electrode.
Nickel and antimony doped tin dioxide is a novel anodic material for its good performance of electrochemical ozone generation and direct electro-catalytic oxidation. Electro-catalytic oxidation of phenol on this novel nickel-antimony doped tin dioxide electrode is presented here. The morphology and composition of the electrode are characterized. The effects of applied current densities on phenol degradation rate, energy consumption and coulomb efficiency are discussed. In 0.1 M sulfuric acid, after 4 h electrolysis with current density of 25 mA cm(-1), 90% phenol is removed. And with current density of 20 mA cm(-1), the highest energy efficiency of 6.85 g kWh(-1) and the highest coulomb efficiency of 6.87 μg C(-1) are obtained. The effect of current densities on TOC removal is also discussed.
State Key Laboratory of Multiphase Flow, Faculty of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China. qychen@mail.xjtu.edu.cn
Qing-Yun
QY
Chen
Dong-Dong
DD
Shi
Yuan-Jun
YJ
Zhang
Yun-Hai
YH
Wang
D000965:Antimony / Q000737:chemistry*; D004566:Electrodes; D008855:Microscopy, Electron, Scanning; D009532:Nickel / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry*; D017971:Tin Compounds / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification
D010636:Phenols; D017971:Tin Compounds; D014874:Water Pollutants, Chemical; D009532:Nickel; D000965:Antimony; D014025:Titanium; C045358:stannic oxide