| Electrochemical Activity of IrO(2) Electrodes in Aqueous Solutions Containing 4-Chlorophenol | |
| X. M. Wang; J. M. Hu; J. Q. Zhang; C. N. Cao | |
| 2009 | |
| Source Publication | Acta Physico-Chimica Sinica
 |
| ISSN | 1000-6818 |
| Volume | 25Issue:9Pages:1725-1730 |
| Abstract | The effect of 4-chlorophenol (4-CP) on the electrochemical activity of Ti-based IrO(2) electrodes in acidic aqueous solutions was investigated within the electrochemical window for 4-CP. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) measurements both indicated that the existence of 4-CP in solution resulted in the activation of the IrO(2) electrode in the electrochemical window. However, the testing results at metallic It electrode showed that the electrode activity was inhibited by 4-CP because of its adsorption onto the metal surface. A possible mechanism is proposed based on the influence of 4-CP on the electrochemical activities of these two electrode materials. The activation of IrO(2) is believed to be related to its ease of transition from lower-valent to higher-valent oxides in the electrochemical window. The later oxides can be chemically oxidized and can remove organic molecules that are adsorbed onto the oxide electrode surface. |
| description.department | [wang xiao-mei; hu ji-ming; zhang jian-qing; cao chu-nan] zhejiang univ, dept chem, hangzhou 310027, peoples r china. [zhang jian-qing; cao chu-nan] chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china.;hu, jm (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china;kejmhu@zju.edu.cn |
| Keyword | Electrochemical Activity Iro(2) Electrode 4-chlorophenol Aqueous Solution Activation Ti/iro2 Electrodes Electrocatalytic Activities Impedance Spectroscopy Chlorinated Phenols Oxidation Degradation Electrooxidation Temperature Behavior Dioxide |
| URL | 查看原文 |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/32388 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | X. M. Wang,J. M. Hu,J. Q. Zhang,et al. Electrochemical Activity of IrO(2) Electrodes in Aqueous Solutions Containing 4-Chlorophenol[J]. Acta Physico-Chimica Sinica,2009,25(9):1725-1730. |
| APA | X. M. Wang,J. M. Hu,J. Q. Zhang,&C. N. Cao.(2009).Electrochemical Activity of IrO(2) Electrodes in Aqueous Solutions Containing 4-Chlorophenol.Acta Physico-Chimica Sinica,25(9),1725-1730. |
| MLA | X. M. Wang,et al."Electrochemical Activity of IrO(2) Electrodes in Aqueous Solutions Containing 4-Chlorophenol".Acta Physico-Chimica Sinica 25.9(2009):1725-1730. |
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