催化学报

催化学报 ›› 2008, Vol. 29 ›› Issue (12): 1253-1258.

• 研究论文 • 上一篇    下一篇

纳米TiN粉体氧化制备铱钛氧化物为中间层的钛基氧化铱电极

胡杰珍,徐海波,芦永红,皇甫淑君,王佳,代琳   

  1. 中国海洋大学化学化工学院海洋化学理论与工程技术教育部重点实验室, 山东青岛 266003
  • 收稿日期:2008-12-25 出版日期:2008-12-25 发布日期:2012-09-20

Ti/IrO2-Coated Electrode with Iridium-Titanium Oxide Interlayer by TiN Nano-particle Oxidation

HU Jiezhen, XU Haibo*, LU Yonghong, HUANGFU Shujun, WANG Jia, DAI Lin   

  1. Key Laboratory of Marine Chemistry Theory and Technology of Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266003, Shandong, China
  • Received:2008-12-25 Online:2008-12-25 Published:2012-09-20

PDF

1107

被引次数

18

摘要： 以纳米TiN粉体和氯铱酸的混合液为涂液,采用浸渍-热分解法制备了含IrOx-TiO2中间层的钛基氧化铱电极. 利用扫描电镜、X射线能谱和X射线衍射技术并结合电化学方法考察了中间层的组成和焙烧温度对电极的电催化性能和使用寿命的影响. 结果表明, IrOx-TiO2中间层的加入没有改变传统的钛基氧化铱电极的形貌特征和组成,并使电极具有相同的电催化响应特性,同时大大提高了钛基氧化铱电极的使用寿命. 制备钛基氧化铱电极的最优条件为焙烧温度450 ℃, 中间层中Ir/Ti摩尔比为1.5.

关键词: 氮化钛, 氯铱酸, 氧化钛, 氧化铱, 中间层, 电催化

Abstract: The Ti/IrOx-TiO2/IrO2 electrode with iridium-titanium oxide interl ayer (n(Ir)/n(Ti)=49 (2), 9 (3), 4 (4), 1.5 (5)) was prepared by the i mpregation-thermal decomposition method. Compared with the conventional Ti/IrO 2 electrode (1), it not only increased its electrocatalytic activity for oxyge n evolution but also greatly improved its service life.

Key words: titanium nitride, chloro-iridic acid, titanium oxide, iridium oxide, interlayer, electrocatalysis