含锡锑中间层的析氧阳极的制备及性能研究  

Preparation and properties of the oxygen evolution anode with an interlayer containing tin and antimony

作　　者：廖永兰[1] 刘贵昌[1] 赵岩[1] 季伟光[2] 宋树军[2] 

机构地区：[1]大连理工大学化工学院化学工程系；辽宁大连116012 [2]华能丹东电厂,辽宁丹东118300

出　　处：《电镀与涂饰》2008年第10期51-54,共4页Electroplating & Finishing

基　　金：国家自然科学基金项目(50577075);中国华能集团公司科技项目(06-145)

摘　　要：从延缓涂层钛阳极基体钝化的角度出发,采用热分解法制备了含SnO2–Sb2O5中间层的钛基铱钽电极。利用扫描电镜、X射线衍射、能谱等方法对Ti/SnO2–Sb2O5/IrO2–Ta2O5阳极表面的形貌、相结构、元素组成和电化学性能进行了分析。结果表明,Ti/SnO2–Sb2O5/IrO2–Ta2O5阳极的使用寿命较Ti/IrO2–Ta2O5阳极有大幅度的提高,并且具有更高的电催化活性。Ti/SnO2–Sb2O5/IrO2–Ta2O5是一种在酸性环境中非常具有前景的析氧阳极。An IrO2-Ta2O5-coated Ti electrode with an inter- layer containing Sn and Sb elements was prepared by thermal decomposition to decrease the passivation speed of the Ti substrate. The morphology, structure, elemental composition and electrochemical performance of the surface of Ti/ SnOz-Sb2O5/IrO2-Ta2O5 anode were studied by scanning electron microscopy, X-ray diffraction and energy-dispersive spectroscopy. The results indicated that the electrocatalytic activity and service life of Ti/SnO2- Sb2O5/IrO2-Ta2O5 anode are higher than that of the Ti/IrOz-Ta2O5 anode, showing a very good prospect for its use as an oxygen-evolution anode in acidic environment.

关 键 词：氧化物涂层钛阳极 铱钽涂层 锡锑中间层 析氧 

分 类 号：TQ174.2[化学工程—陶瓷工业] O643.3[化学工程—硅酸盐工业]