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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40g/L时,电流密度为0.015~0.025A/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.

参考文献

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