Active Stainless Steel/SnO_2-CeO_2 Anodes for Pollutants Oxidation Prepared by Thermal Decomposition

作     者：Jiangang Zhang Yunpeng Wei Guangjian Jin Gang Wei 

作者机构：College of Materials Science and Engineering Beij-ing University of ChemiCal Technology Beijing 100029 China Beijing Eau Tech Co. Ltd. Beijing 100101 China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2010年第26卷第2期

页      面：187-192页

核心收录：

学科分类：083001[工学-环境科学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National High-Tech Research and Development Program of China(Grant No. 280 2007AA05Z409) 

主　　题：SnO2-CeO2 anodes Stainless steel Electrochemical oxidation Dye wastewater 

摘      要：Stainless steel plates were successfully coated with SnO2-CeO2 films （SS/SnO2-CeO2） by brush coating with a solution of stannous chloride and cerium trichloride followed by thermal decomposition. It is proven that the properties of SnO2 films can be evidently improved by Ce doping, and 600℃ is the optimum temperature to prepare SS/SnO2-CeO2 anodes. The physicochemical and electrochemical properties as well as the elec- trocatalytic activity of the electrodes were investigated. It is found that the novel electrodes have compact microstructure, high overpotential for oxygen evolution （1.60 V vs SCE）, excellent electrochemical stability, relatively low cost and excellent catalytic activity for oxidizing pollutants. An industrial dye wastewater, which is hard to be purified by using conventional chemical flocculation methods, was oxidated by employing the SS/SnO2-CeO2 anodes, and 83.00% of color and 48.62% of chemical oxygen demand （COD） removal was achieved under the cell voltage of 5 V within only 2 min, and the electricity consumption is only 1.83 kWh for oxidizing I m3 of dye wastewater.