引用本文:
廖登辉, 陈阵, 郭忠诚, 陆丽芳. 新型不锈钢基二氧化铅-碳化钨复合电极材料的研制[J]. 应用化学,
2013, 30(2): 196-202.
doi:
DOI:10.3724/SP.J.1095.2013.20065
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
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
新型不锈钢基二氧化铅-碳化钨复合电极材料的研制
摘要:
在不锈钢基上通过复合电沉积的方式制备了二氧化铅-碳化钨(PbO2-WC)电极。考察了温度、电流、WC颗粒浓度对电极性能的影响;通过析氧曲线、Tafel曲线、扫描电子显微镜能谱、X射线衍射图谱考察了WC颗粒掺杂前后PbO2电极相关性能的变化。结果表明,在最佳工艺即温度70℃、镀液中WC颗粒浓度为40 g/L时,电流密度为0.015~0.025 A/cm2;PbO2-WC共沉积过程中PbO2发生了择优生长,WC颗粒的加入能够细化PbO2晶粒,使镀层变得致密,相对于PbO2电极,PbO2-WC复合电极的耐腐蚀性上升,析氧过电位下降。
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关键词:
- 不锈钢基
- / 改性电极
- / 电化学性能
- / 二氧化铅-碳化钨复合镀层
English
Preparation of New Stainless Steel Substrate Lead Dioxide-Tungsten Carbide Composite Inert Anode Material
Abstract:
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.
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