Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11007805 | Corrosion Science | 2018 | 9 Pages |
Abstract
Sn-SbOx, Sn-Sb-RuOx, and β-PbO2 coatings were successfully deposited on a titanium substrate by using the thermal deposition and electrodeposition methods, and their electrochemical properties were investigated in detail. The Sn-Sb-RuOx interlayer played a very important role in enhancing the stability of the PbO2 coating electrodeposited at a low current density. The scanning electron microscopy results showed that the cracks in the Sn-Sb-RuOx coating were larger than those in the Sn-SbOx coating. Moreover, the Ti/Sn-Sb-RuOx/β-PbO2 coating had many large pits with pore diameters in the range of 50-180âμm and pore depths of <18.4âμm. The electrodeposition mechanism of β-PbO2 was investigated by cyclic voltammetry. Compared to the compact β-PbO2 anode, the porous β-PbO2 anode showed superior electrocatalytic activity and electrochemical stability. A service life of 96âh was achieved for this anode under the accelerated-life-test conditions at a current density of 1âA/cm2 in a solution of 150âg/L H2SO4 and 1âg/L Clâ.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Buming Chen, Shichuan Wang, Jianhua Liu, Hui Huang, Cansheng Dong, Yapeng He, Wenkai Yan, Zhongcheng Guo, Ruidong Xu, Haitao Yang,