Characterization of surface fouling of Ti/IrO2 electrodes in 4-chlorophenol aqueous solutions by electrochemical impedance spectroscopy

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	Characterization of surface fouling of Ti/IrO2 electrodes in 4-chlorophenol aqueous solutions by electrochemical impedance spectroscopy
	X. M. Wang; J. M. Hu; J. Q. Zhang; C. N. Cao
	2008
发表期刊	Electrochimica Acta
ISSN	0013-4686
卷号	53 期号:8 页码:3386-3394
摘要	Electrochemical impedance spectroscopy (EIS) was used as the main technique coupled with cycling voltammetry (CV) to characterize the surface fouling of a conventional Ti/IrO2 in 4-CP aqueous solutions caused by the electropolymerization of chlorinated phenol. Capacitive information of polymeric films formed was successfully derived from both the on-line and off-line impedance measurements and was used to characterize the surface fouling of IrO2 electrodes. Results showed that the fouling extent at IrO2 electrode decreased when its heating temperature was increased. With increasing the anodic potential, the surface fouling was enhanced firstly and then weakened, reaching the highest extent at 0.9 V. More positive potentials were believed to further oxidize the formed films and thereby to reactivate the deactivated electrode surface. With the increase of positive potential, the regeneration was enhanced, but no entire recovering could be achieved after the reactivation even at very high potentials. (C) 2007 Elsevier Ltd. All rights reserved.
部门归属	[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] state key lab corros & protect, shenyang 110016, peoples r china.;hu, jm (reprint author), zhejiang univ, dept chem, hangzhou 310027, peoples r china;kejmhu@zju.edu.cn
关键词	4-chlorophenol Iro2 Electrodes Electrooxidation Electropolymerization Eis Boron-doped Diamond Waste-water Treatment Quartz-crystal Microbalance Chlorinated Phenols Alkaline-solution Oxygen Evolution Electrocatalytic Properties Amperometric Detection Corrosion Behavior Mass-spectrometry
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WOS记录号	WOS:000254031300021
引用统计	被引频次：31[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33156
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. M. Wang,J. M. Hu,J. Q. Zhang,et al. Characterization of surface fouling of Ti/IrO2 electrodes in 4-chlorophenol aqueous solutions by electrochemical impedance spectroscopy[J]. Electrochimica Acta,2008,53(8):3386-3394.
APA	X. M. Wang,J. M. Hu,J. Q. Zhang,&C. N. Cao.(2008).Characterization of surface fouling of Ti/IrO2 electrodes in 4-chlorophenol aqueous solutions by electrochemical impedance spectroscopy.Electrochimica Acta,53(8),3386-3394.
MLA	X. M. Wang,et al."Characterization of surface fouling of Ti/IrO2 electrodes in 4-chlorophenol aqueous solutions by electrochemical impedance spectroscopy".Electrochimica Acta 53.8(2008):3386-3394.