添加碳纳米管对钌铱锡氧化物阳极性能的影响

doi:10.13208/j.electrochem.141219

电化学（中英文） ›› 2015, Vol. 21 ›› Issue (4): 375-381. doi: 10.13208/j.electrochem.141219

添加碳纳米管对钌铱锡氧化物阳极性能的影响

廉锋^1,2，辛永磊^2*，马伯江¹，许立坤²

1. 青岛科技大学机电学院，山东青岛 266061；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国家级重点实验室，山东青岛 266101

收稿日期:2014-12-19 修回日期:2015-03-18 出版日期:2015-08-28 发布日期:2015-08-28
通讯作者: 辛永磊 E-mail:xinyonglei@163.com
基金资助:
国家自然科学基金项目（No. 51401185）资助

Effect of Carbon Nanotubes on Anodic Properties of Ti/Ru-Ir-Sn Oxides

LIAN Feng^1,2, XIN Yong-lei^2*, MA Bo-jiang¹, XU Li-kun²

1. Qingdao University of Science and Technology, Qingdao 266061, Shandong, China; 2. State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao 266101, Shandong, China

Received:2014-12-19 Revised:2015-03-18 Published:2015-08-28 Online:2015-08-28
Contact: XIN Yong-lei E-mail:xinyonglei@163.com

摘要/Abstract

摘要： 本文采用热分解法制备Ti/Ru-Ir-Sn氧化物阳极，运用TGA、SEM、EDS、循环伏安、电化学交流阻抗、极化曲线以及强化电解寿命测试方法，探讨添加不同含量碳纳米管（CNTs）对Ti/Ru-Ir-Sn氧化物阳极的影响规律. 热重分析和阳极能谱数据表明，在烧结温度470 ^oC条件下CNTs未发生高温氧化分解，仍以单质形式存在阳极涂层中. 与对比样品相比，涂层表面裂纹增多，但仍保持典型形貌. 添加CNTs显著改善了Ti/Ru-Ir-Sn氧化物阳极的电化学性能，增大了阳极的活性表面积，减小了涂层内部电阻，提高了阳极析氯电催化活性，析氯电位增加缓慢，阳极强化电解寿命也得到明显延长. 其中，添加0.1 g·L^-1 CNTs的Ti/Ru-Ir-Sn氧化物阳极电催化活性和稳定性最优.

关键词: 碳纳米管, 金属氧化物阳极, 电催化活性, 强化电解寿命

Abstract: The Ru-Ir-Sn metal oxide anodes coated on titanium (Ti/Ru-Ir-Sn) were prepared by thermal decomposition. The effects of amounts of carbon naotubes (CNTs) on anodic properties were studied by TGA, SEM, EDS, cyclic voltammetry, EIS, polarization measurements and accelerated life test. The thermogravimetric analysis and EDS spectrum data showed that the high temperature oxidation decomposition of CNTs did not take place under the condition of the sintering temperature of 470 ℃, and the CNTS still existed in the anode coating in an element form. Compared with the contrast samples, the surface crack of the coating increased, but remained typical morphology. Adding the CNTs significantly improved the electrochemical properties of Ti/Ru-Ir-Sn oxide anodes, enhanced the active surface area of the anode, and reduced the internal resistance of the coating, which improved the electrocatalytic activity of the anode toward chlorine evolution, thus, the chlorine evolution potential increased slowly, and the accelerated life was also apparently improved. Particularly, the Ti/Ru-Ir-Sn oxide anode adding 0.1 g·L^-1 CNTs exhibited the best anodic electrocatalytic activity and stability

Key words: carbon nanotubes, metal oxide anodes, electric catalytic activity, accelerated life

中图分类号:

O646.6

廉锋, 辛永磊, 马伯江, 许立坤. 添加碳纳米管对钌铱锡氧化物阳极性能的影响[J]. 电化学（中英文）, 2015, 21(4): 375-381.

LIAN Feng, XIN Yong-lei, MA Bo-jiang, XU Li-kun. Effect of Carbon Nanotubes on Anodic Properties of Ti/Ru-Ir-Sn Oxides[J]. Journal of Electrochemistry, 2015, 21(4): 375-381.

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添加碳纳米管对钌铱锡氧化物阳极性能的影响

Effect of Carbon Nanotubes on Anodic Properties of Ti/Ru-Ir-Sn Oxides

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