金属氧化物阳极失效过程的电化学监测

许立坤; 宋诗哲; 王廷勇; 陈光章

doi:10.61558/2993-074X.1502

电化学 >

2003 , Vol. 9 >Issue 2: 177 - 183

DOI: https://doi.org/10.61558/2993-074X.1502

研究论文

金属氧化物阳极失效过程的电化学监测

许立坤 ,
宋诗哲 ,
王廷勇 ,
陈光章

展开

七二五研究所青岛分部海洋腐蚀与防护国家重点实验室,天津大学材料科学与工程学院,七二五研究所青岛分部海洋腐蚀与防护国家重点实验室,七二五研究所青岛分部海洋腐蚀与防护国家重点实验室山东青岛266071,天津大学材料科学与工程学院,天津300072 ,天津300072 ,山东青岛266071 ,山东青岛266071

收稿日期: 2003-05-28

修回日期: 2003-05-28

网络出版日期: 2003-05-28

收起

Electrochemical Monitoring on the Deactivation of a Metallic Oxide Anode

XU Li_kun ,
 ,
SONG Shi_zhe ,
WANG Ting_yong

Expand

(1.Qingdao Branch of Luoyang Ship Material Research Institute,State Key Laboratory for Marine Corrosion and Protection, Qingdao 266071,China,2. School of Material Science and Engineering,Tianjin University,Tianjin 300072,China

Received date: 2003-05-28

Revised date: 2003-05-28

Online published: 2003-05-28

Fold

摘要

采用循环伏安和电化学阻抗谱等电化学方法对金属氧化物阳极在硫酸中的寿命加速过程进行了监测.检测了阳极伏安电量,双电层电容,氧化物膜电阻和析氧反应的电荷传递电阻等电化学参数随电解时间的变化,并提出金属氧化物阳极电解失效的机理.

关键词： 氧化物; 阳极; 循环伏安; 电化学阻抗谱

本文引用格式

许立坤 , 宋诗哲 , 王廷勇 , 陈光章 . 金属氧化物阳极失效过程的电化学监测[J]. 电化学, 2003 , 9(2) : 177 -183 . DOI: 10.61558/2993-074X.1502

Abstract

The process of accelerated life test of an IrO2/Ta2O5 coated titanium anode was monitored using cyclic voltammetry and electrochemical impedance spectroscopy.The vatiation with electrolysis time of anodic voltammetric charge Q*,the double layer capacitance Cdl,the oxide film resistance Rf and the charge transfer resistance Rct for oxygen evolution was measured.A deactivation mechanism was proposed based on the observation results.

参考文献

[1]　TrasattiS.Electrocatalysis:understandingthesuccessofDSA[J].Electrochim.Acta,2000,(45):2377. [2]　NidolaA.Technologicalimpactofmetallicoxidesasanodes,in:S.Trasattied.,ElectrodesofconductivemetallicoxidesPartB[M].Amsterdam:Elsevier,1981:627. [3]　ComninellisC,VercesiGP,CharacterizationofDSA＿typeoxygenevolvingelectrodes:choiceofacoating[J].J.Appl.Electrochem.,1991,(21):335. [4]　KrysaJ,MaixnerJ,MrazR,etal.EffectofcoatingthicknessonthepropertiesofIrO2＿Ta2O5anodes[J].J.Appl.Electrochem.,1998,(28):369. [5]　TrasattiS.Physicalelectrochemistryofceramicoxides[J].Electrochim.Acta,1991,2(36):225. [6]　LassaliTAF,BoodtsJFC,BulhoesLOS.ChargingprocessesandelectrocatalyticpropertiesofIrO2/TiO2/SnO2oxidefilmsinvestigatedbyinsituacimpedancemeasurements[J].Electrochim.Acta,1999,(44):4203. [7]　XuLK,ScantleburyJD.ElectrochemicalsurfacecharacterizationofIrO2＿Ta2O5coatedtitaniumelectrodesinNa2SO4solution[J].J.Electrochem.Soc.,2003,(150):B288. [8]　MrazR,KrysaJ.LongservicelifeIrO2/Ti2O5electrodesforelectroflotation[J].J.Appl.Electrochem.,1994,(24):1262. [9]　KrysaJ,KuleL,MrazR,etal.EffectofcoatingthicknessandsurfacetreatmentoftitaniumonthepropertiesofIrO2＿Ta2O5anodes[J].J.Appl.Electrochem.,1996,(26):999. [10]　KotzR,NeffH,StuckiS.Anodiciridiumoxidefilms[J].J.Electrochem.Soc.,1984,(131)1:72. [11]　PourbaixM.AtlasofElectrochemicalEquilibriainAqueousSolution[M].Houston:NACE,1974:373. [12]　KernerZ,PajkossyT.Ontheoriginofcapacitancedispersionofroughelectrodes[J].Electrochim.Acta,2000,(46):207. [13]　TilakBV,ChenCP,BirssVI,etal.CapacitiveandkineticcharacteristicsofRu＿Tioxideelectrodes:influenceofvariationintheRucontent[J].Can.J.Chem.,1997,(75):1773. [14]　BeckF.Wearmechanismsofanodes[J].Electrochim.Acta,1989,(34)6:811. [15]　AlvesVA,SilvaLA,BoodtsJFC.Electrochemicalimpedancespectroscopicstudyondimensionallystableanodecorrosion[J].J.Appl.Electrochem.,1998,(28):899.

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献