NaCl浓度对金属氧化物阳极电化学性能与失效影响研究  

Study on Electrochemical Performance and Deactivation Behavior of Metal Oxide Anode Affected by Different NaCl Concentration

作　　者：张胜健 辛永磊[2] 许立坤[2] 杜爱玲[3] 

机构地区：[1]太原工业学院化学与化工系,山西太原030008 [2]中国船舶重工集团公司第七二五研究所海洋腐蚀与防护重点实验室,山东青岛266101 [3]山东大学化学与化工学院,山东济南250061

出　　处：《热加工工艺》2015年第6期60-63,66,共5页Hot Working Technology

摘　　要：采用热分解法在钛基体上制备钌铱锡金属氧化物阳极。通过循环伏安测试、电流效率测试、极化曲线测试以及析氯电位测试等电化学测试手段,考察盐浓度对钌铱锡金属氧化物阳极电化学性能的影响;采用强化电解寿命测试考察盐浓度对金属氧化物阳极寿命的影响规律;通过电镜与能谱测试,分析盐浓度对失效行为影响。实验结果表明,NaCl的浓度升高时,钌铱锡金属氧化物强化电解寿命长,析氯阻力变小,析氯电位减小,钌铱锡金属氧化物阳极的选择性大。另外,随着NaCl浓度的升高,钌铱锡金属氧化物阳极的电流效率会随之增大。The Rn-Ir-Sn metal oxide anodes coated on titanium were prepared by thermal decomposition.The anodes were studied by cyclic voltammetry,polarization curve,chlorine evolution potential,which characterized the electrochemical performance of metal oxide anode at different concentrations of NaCl.The influences of metal oxide anode life affected by NaCl concentration were tested by accelerated life test.Failure behavior of metal oxide anodes at different concentrations of NaCl was discuss by SEM and EDX.The results indicate that electrolysis life will be extended,chlorine evolution potential will be reduced and selectivity of metal oxide anodes will increase when concentrations of NaCl rising.The current efficiency of metal oxide anodes will also be increased with the concentration of NaCl rising.

关 键 词：金属氧化物阳极 NaCl浓度 电流效率 失效 

分 类 号：TG174.41[金属学及工艺—金属表面处理]