嵌中间层金属氧化物电极

doi:10.61558/2993-074X.1970

电化学（中英文） ›› 2009, Vol. 15 ›› Issue (2): 146-151. doi: 10.61558/2993-074X.1970

嵌中间层金属氧化物电极

唐益;许立坤;辛永磊;王均涛;龙萍;

中国船舶重工集团公司第七二五研究所海洋腐蚀与防护国防科技重点实验室;

收稿日期:2009-05-28 修回日期:2009-05-28 出版日期:2009-05-28 发布日期:2009-05-28

Electrode of Metallic Oxides Coated Titanium with Interlayer

TANG Yi,XU Li-kun,XIN Yong-lei,WANG Jun-tao,LONG Ping

(State Key Laboratory for Marine Corrosion and Protection,Luoyang Ship Material Research Institute,Qingdao 266071,Shandong,China

Received:2009-05-28 Revised:2009-05-28 Published:2009-05-28 Online:2009-05-28

摘要/Abstract

摘要： 采用溶胶-凝胶法制备Ti/IrRuSn、Ti/IrTa/IrRuSn和Ti/IrTaSn/IrRuSn氧化物电极,FESEM、XRD观察该电极微观结构,循环伏安、强化电解测试电极电化学性能.结果表明:嵌中间层氧化物电极表面裂纹增多,改变了颗粒形状和平均晶粒尺寸,虽电流效率略有降低,增多活性点,提高电极析氯反应选择性;但2种氧化物电极(Ti/IrTa/IrRuSn和Ti/IrTaSn/IrRuSn)的强化电解寿命和正反交替电解寿命均较好.

关键词: 复合电极, 电解海水, 电流效率, 微观结构, 稳定性

Abstract: Various Ti/IrRuSn,Ti/IrTa/IrRuSn and Ti/IrTaSn/IrRuSn oxide electrodes were prepared by sol-gel method.The surface morphology and microstructure were analysed with FESEM and XRD.The electrochemical activity and stability were investigated using electrochemical technologies including chlorine and oxygen evolving potential measurements,cyclic voltammetry,accelerated life test,and alternative electrolysis.The results indicate that the electrodes with interlayers present more cracks on the surface and a little bigger average grain size,with particles of different shapes precipitated in the cracks.The electroactive sites are increased and the selectivity for the chlorine evolving reaction is enhanced,but the current efficiency for the chlorine production is somewhat lowered by the addition of different interlayers.The stability characterised with accelerated life test and alternative electrolysis of Ti/IrTa/IrRuSn and Ti/IrTaSn/IrRuSn oxide electrodes is significantly higher than Ti/IrRuSn oxide electrode without interlayers.

Key words: composite electrode, seawater electrolysis, current efficiency, microstructure, stability

中图分类号:

TG174.41

唐益, 许立坤, 辛永磊, 王均涛, 龙萍, . 嵌中间层金属氧化物电极[J]. 电化学（中英文）, 2009, 15(2): 146-151.

TANG Yi, XU Li-kun, XIN Yong-lei, WANG Jun-tao, LONG Ping. Electrode of Metallic Oxides Coated Titanium with Interlayer[J]. Journal of Electrochemistry, 2009, 15(2): 146-151.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.61558/2993-074X.1970

https://electrochem.xmu.edu.cn/CN/Y2009/V15/I2/146

参考文献

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嵌中间层金属氧化物电极

Electrode of Metallic Oxides Coated Titanium with Interlayer

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