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Citation: LIAO Denghui, CHEN Zhen, GUO Zhongcheng, LU Lifang. Preparation of New Stainless Steel Substrate Lead Dioxide-Tungsten Carbide Composite Inert Anode Material[J]. Chinese Journal of Applied Chemistry, ;2013, 30(2): 196-202. doi: DOI:10.3724/SP.J.1095.2013.20065 shu

Preparation of New Stainless Steel Substrate Lead Dioxide-Tungsten Carbide Composite Inert Anode Material

1.
a College of Metallurgy and Energy, Kunming University of Science and Technology, Kunming 650093, China;
2.
b College of Science, Kunming University of Science and Technology, Kunming 650093, China

Corresponding author: CHEN Zhen,
Received Date: 28 February 2012
Available Online: 15 May 2012
Fund Project: 国家自然科学基金资助项目(50964008) (50964008)

The lead dioxide-tungsten carbide(PbO₂-WC) electrodes were prepared on stainless steel substrate by composite electrodeposition.The influences of temperature,current density and WC granule concentration on electrode performance were studied.Analyses of oxygen evolution curves,Tafel curves,scanning electron microscope,X-ray diffraction were used to investigate the performance changes after modified by WC granule.The optimal conditions were obtained as follows,temperature:70℃,current density:0.015~0.025 A/cm²,WC granule concentration in plating solution:40 g/L.In the process of codeposition,the results showed that the growth of PbO₂ is preferred,with the PbO₂ grain refined by WC granule,and the coating became denser.In comparison to the PbO₂ electrode,the PbO₂-WC composite electrode exhibits a stronger corrosion resistance and a lower oxygen evolution potential.
- stainless steel substrate,
- modified electrode,
- electrochemical properties,
- lead dioxide-tungsten carbide composite coating
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