刻蚀剂对IrO2-MnO2阳极纳米涂层表面形貌及电化学行为的影响

doi:10.13208/j.electrochem.140516

电化学（中英文） ›› 2015, Vol. 21 ›› Issue (1): 91-96. doi: 10.13208/j.electrochem.140516

刻蚀剂对IrO₂-MnO₂阳极纳米涂层表面形貌及电化学行为的影响

范庆国¹，叶志国^1*，孟惠民²，卢春民¹

1. 南昌航空大学材料科学与工程学院，江西南昌 310063；2. 北京科技大学材料科学与工程学院，北京 100083

收稿日期:2014-05-19 修回日期:2014-07-18 出版日期:2015-02-28 发布日期:2014-07-25
通讯作者: 叶志国 E-mail:yezhiguo2008@163.com
基金资助:
国家自然科学基金和航空基金项目（No. 21103085, No. 2013ZF56022）资助

Effects of Etchants on Surface Morphologies and Electrochemical Performance of IrO₂-MnO₂ Anodic Nano-Coatings

FAN Qing-guo¹, YE Zhi-guo^1*, MENG Hui-min², Lu Chun-min¹

1. School of Material Science and Engineering, Nanchang Hangkong University, Nanchang 330063, China; 2. Beijing Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China

Received:2014-05-19 Revised:2014-07-18 Published:2015-02-28 Online:2014-07-25
Contact: YE Zhi-guo E-mail:yezhiguo2008@163.com

摘要/Abstract

摘要： 采用传统热分解法制得了不同刻蚀剂（HCl、H₂SO₄、C₂H₂O₄和HF）处理的Ti基IrO₂-MnO₂纳米涂层阳极，使用场发射扫描电子显微镜（FESEM）、循环伏安（CV）及极化技术等观察和研究各纳米涂层阳极表面形貌及其电化学性能. 结果表明，与HCl和C₂H₂O₄刻蚀剂相比，HF和H₂SO₄刻蚀的基底涂层表面IrO₂纳米颗粒更为密集且尺寸更大；H₂SO₄刻蚀处理的Ti基IrO₂-MnO₂阳极电催化活性最佳，HF次之，C₂H₂O₄再次之，HCl最差.

关键词: 刻蚀剂, IrO₂-MnO₂阳极涂层, 热分解, 循环伏安电荷, 电流密度

Abstract: The IrO₂-MnO₂ anodic nano-coatings were prepared by the traditional thermal decomposition method on the different surfaces of Ti substrates pretreated by different etchants (HCl, H₂SO₄, C₂H₂O₄ and HF). Surface morphologies and electrochemical performance of the Ti based IrO₂-MnO₂ anodic coatings were investigated by field emission scanning electron microscopy (FESEM), cyclic voltammetry (CV) and polarization techniques. Analysis showed that the denser IrO₂ nano-particles with longer dimensions were obtained at the IrO₂-MnO₂ anodic coating surfaces on the Ti substrates etched by HF and H₂SO₄ as compared with those on the Ti substrates etched by HCl and C₂H₂O₄. The decreasing order of electro-catalytic activities for the IrO₂-MnO₂ anodic nano-coatings on the Ti substrates etched by different etchants is H₂SO₄ > HF > C₂H₂O₄ > HCl.

Key words: etchants, IrO₂-MnO₂ coating anode, thermal decomposition, cyclic voltammetric charge, current density

中图分类号:

O646

范庆国，叶志国*，孟惠民，卢春民. 刻蚀剂对IrO₂-MnO₂阳极纳米涂层表面形貌及电化学行为的影响[J]. 电化学（中英文）, 2015, 21(1): 91-96.

FAN Qing-guo, YE Zhi-guo*, MENG Hui-min, Lu Chun-min. Effects of Etchants on Surface Morphologies and Electrochemical Performance of IrO₂-MnO₂ Anodic Nano-Coatings[J]. Journal of Electrochemistry, 2015, 21(1): 91-96.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.140516

https://electrochem.xmu.edu.cn/CN/Y2015/V21/I1/91

参考文献

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刻蚀剂对IrO₂-MnO₂阳极纳米涂层表面形貌及电化学行为的影响

Effects of Etchants on Surface Morphologies and Electrochemical Performance of IrO₂-MnO₂ Anodic Nano-Coatings

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