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电化学(中英文) ›› 1996, Vol. 2 ›› Issue (3): 293-293. 

• 研究论文 • 上一篇    下一篇

析氯钛基RuO_2-Co_3O_4-TiO_2(60)涂层的研究

姚立广,王明贤   

  1. 中国科学院金属腐蚀与防护研究所
  • 收稿日期:1996-08-28 修回日期:1996-08-28 出版日期:1996-08-28 发布日期:1996-08-28

A Study of RuO_2-Co_3O_4-TiO_2(60)Coating on Ti-Substrate for Chlorine Gas Evolution

Yao Liguang;Wang Mingxian   

  1. (Institute of corrosion and protection of metals,Academia Sinica,Shenyang 110015
  • Received:1996-08-28 Revised:1996-08-28 Published:1996-08-28 Online:1996-08-28

摘要: 用稳定极化、X射线衍射、透射电镜和扫描电镜的方法研究了钛基RuO_2-Co_3O_4-TiO_2(60)涂层的析氯活性、导电性、使用寿命、微观结构和表面形貌。并对其活性表面积进行了评价。详细讨论了涂层成份、微观结构和表面形貌对涂层析氯活性和活性表面积的影响。发现在0~10m/oCo_3O_4和60m/oTiO_2成份范围内RuO_2、Co_3O_4和TiO_2可形成单一金红石型固溶体,且有优异的析氯活性、电导率和使用寿命。以此研究为基础可改进氯碱工业广泛使用的传统RuO_2-TiO_2阳极,降低阳极涂层中贵金属含量,提高阳极的电化学性能.

关键词: RuO_2-CO_3O_4-TiO_2(60)涂层, 析氯活性, 微观结构, 固溶体, 表面形貌, 欧姆极化

Abstract: The chlorine gas evolution activity,electric conductivity,service life,microstructure and surface morphology of RuO2-CO3O4-TiO2(60) coating on Ti-subetrate were studied in 0~30 m/o Co3O4 range by steady-state pelarization,x-ray diffraction,TEM and SEM methods.Active surface area of the coating was also evaluated. The in fluences of coating composition,micrortructure and surface morphology on chlorine gas evolution activity and active surface area of the coating were discussed in detail.As a result,sole rutile-type solid solution of RuO2,CO3O4 and TiO2 which showed better chlorine gas evolution activity,electric conductivity and service life was found in ca. 0~10 m/o Co3O4 range. Traditional RuO2-TiO2/Ti anedes being widely used in chlor-alkali industry could be medified by a suitable amount of Co3O4 for the benefit of reducing content of Ru as a noble metal in the coating and improving the electrochemical properties of the anodes.

Key words: RuO2-Co3O4-Tio2(60)coating, cl2-evolution activity, Microstructure, solid solution, Surface morphology

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