Preparation and characterization of PbO2 electrodes doped with different rare earth oxides

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	Preparation and characterization of PbO2 electrodes doped with different rare earth oxides
	Kong, Jiangtao ; Shi, Shaoyuan 2; Kong, Lingcai ; Zhu, Xiuping ; Ni, Jinren
刊名	ELECTROCHIMICA ACTA
	2007-12-31
卷号	53 期号:4 页码:2048-2054
关键词	PbO2 electrodes rare earth oxides 4-chlorophenol cyclic voltammetry electrochemical oxidation
ISSN号	0013-4686
其他题名	Electrochim. Acta
中文摘要	PbO2 electrodes doped with rare earth oxides (Re-PbO2), including Er2O3,.Gd2O3, La2O3 and CeO2, were prepared by anodic codeposition in order to investigate the effect of rare earth oxide dopants on the properties of PbO2 electrodes. The physicochernical properties of the Re-PbO2 electrodes were analyzed by spectral methods and electrochemical measurements. The surface morphology of the Re-PbO2 electrodes held the characteristics of the dopants and the crystal grain of PbO, The crystal structure of the PbO2 electrodes was also influenced by doping with different rare earth oxides. The presence of Er,03 and La,03 in the PbO2 films could enhance the direct anodic oxidation, which was helpful to mineralize 4-chlorophenol. The 4-chlorophenol decay on the Re-PbO2 electrodes was analyzed and good fitting was found using the relation for the pseudo-first order reaction. Of the electrodes examined, the Er-PbO2 electrode exhibited the best performance for the degradation of 4-chlorophenol. The removal rates of COD and 4-chlorophenol during the 9 h electrolysis at a current density of 20 mA cm(-2) were 80.7 and 100%, respectively, with the current efficiency being 16.0-10.1%. (C) 2007 Elsevier Ltd. All rights reserved.
英文摘要	PbO2 electrodes doped with rare earth oxides (Re-PbO2), including Er2O3,.Gd2O3, La2O3 and CeO2, were prepared by anodic codeposition in order to investigate the effect of rare earth oxide dopants on the properties of PbO2 electrodes. The physicochernical properties of the Re-PbO2 electrodes were analyzed by spectral methods and electrochemical measurements. The surface morphology of the Re-PbO2 electrodes held the characteristics of the dopants and the crystal grain of PbO, The crystal structure of the PbO2 electrodes was also influenced by doping with different rare earth oxides. The presence of Er,03 and La,03 in the PbO2 films could enhance the direct anodic oxidation, which was helpful to mineralize 4-chlorophenol. The 4-chlorophenol decay on the Re-PbO2 electrodes was analyzed and good fitting was found using the relation for the pseudo-first order reaction. Of the electrodes examined, the Er-PbO2 electrode exhibited the best performance for the degradation of 4-chlorophenol. The removal rates of COD and 4-chlorophenol during the 9 h electrolysis at a current density of 20 mA cm(-2) were 80.7 and 100%, respectively, with the current efficiency being 16.0-10.1%. (C) 2007 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Electrochemistry
研究领域[WOS]	Electrochemistry
关键词[WOS]	WASTE-WATER TREATMENT ; OXYGEN-TRANSFER REACTIONS ; LEAD DIOXIDE ELECTRODES ; ELECTROCHEMICAL OXIDATION ; ANODIC-OXIDATION ; P-CHLOROPHENOL ; PHENOL ; DEGRADATION ; EVOLUTION ; ACID
收录类别	ISTP ; SCI
原文出处	://WOS:000251759900085
语种	英语
WOS记录号	WOS:000251759900085
公开日期	2013-10-15
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/3356]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Peking Univ, Minist Educ, Key Lab Water & Sediment Sci, Dept Environm Engn, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Kong, Jiangtao,Shi, Shaoyuan,Kong, Lingcai,et al. Preparation and characterization of PbO2 electrodes doped with different rare earth oxides[J]. ELECTROCHIMICA ACTA,2007,53(4):2048-2054.
APA	Kong, Jiangtao,Shi, Shaoyuan,Kong, Lingcai,Zhu, Xiuping,&Ni, Jinren.(2007).Preparation and characterization of PbO2 electrodes doped with different rare earth oxides.ELECTROCHIMICA ACTA,53(4),2048-2054.
MLA	Kong, Jiangtao,et al."Preparation and characterization of PbO2 electrodes doped with different rare earth oxides".ELECTROCHIMICA ACTA 53.4(2007):2048-2054.