Influence of F‐ doping on the microstructure, surface morphology and electrochemical properties of the lead dioxide electrode
Influence of F‐ doping on the microstructure, surface morphology and electrochemical properties of the lead dioxide electrode
复制标题
DOI：
10.1002/sia.5146
复制
发表时间：
2013-03
影响因子：
1.7
通讯作者：
Haishen Kong;Wei Li;Haibo Lin;Zhan Shi;Haiyan Lu;Yuanyuan Dan;Weimin Huang
中科院分区：
文献类型：
--
作者：
Haishen Kong;Wei Li;Haibo Lin;Zhan Shi;Haiyan Lu;Yuanyuan Dan;Weimin Huang
采用恒电位阳极共沉积法，对以Ti为基体、SnO 2-Sb 2 O 5为中间层的二氧化铅电极（PbO 2）进行F离子掺杂。通过调节沉积电位可以控制镀层中F的含量。采用X射线衍射、扫描电子显微镜、X射线光电子能谱和电化学测试等方法研究了F掺杂对PbO 2电极的组成、表面形貌和电化学性能的影响。结果表明，随着F掺杂量的增加，β-PbO 2含量增加，掺杂使β-PbO 2晶粒细化，电极表面变得光滑，比表面积和电导率增加，析氧起始电位较未掺杂PbO 2电极正移; PbO 2膜电极的析氧电位随F-含量的增加而增加。本体电解结果表明，F-PbO 2电极对苯胺的阳极氧化性能得到了一定程度的改善。版权所有© 2012约翰威利父子有限公司.
The lead dioxide electrode (PbO2) with Ti substrate and SnO2‐Sb2O5 intermediate layer was doped by F‐ ion through the potentiostatic anode co‐deposition method. The content of F in the coating can be controlled by adjusting deposition potential. The effect of F‐ doping on the composition, surface morphology and electrochemical properties of the PbO2 electrode was characterized by X‐ray diffraction, scanning electron microscope, X‐ray photoelectron spectroscopy and electrochemical measurement methods. The results have confirmed that the content of β‐PbO2 increases with increasing that of F, and the doping can make the β‐PbO2 grains become fine and the electrode surface become smooth; the specific surface areas and conductivity increase, and the initial potential of oxygen evolution shifts toward positive direction compared with the free‐doped PbO2 electrode; the oxygen evolution potential increases with the increasing of the F‐content in the PbO2 film electrode. The bulk electrolysis result demonstrated that the performances of the F‐PbO2 electrode for anodic oxidation aniline have been improved to some extent. Copyright © 2012 John Wiley & Sons, Ltd.