为了获得一种锌电解用新型阳极材料,在不锈钢上先电化学沉积α-PbO2为中间层,再在镀液中掺杂碳纳米管(CNT)制备了β-PbO2-CNT复合镀层.通过扫描电镜、X射线衍射仪及电化学方法研究了复合镀层的形貌、成分及不同CNT含量的复合镀层在Zn2+-H2SO4体系下的电化学性能.结果表明:CNT掺杂细化了β-PbO2-CNT复合镀层的晶粒,复合镀层表面有正八面体的β-PbO2颗粒、CNT以及因CNT而生成的小八面体β-PbO2晶粒,掺杂CNT提高了复合镀层电极的电催化性能,但对其耐蚀性的提高不多；镀液中CNT的含量为20 g/L时,制备的复合镀层电极的电催化性能和耐蚀性能较好,与Pb-Ag(1％)合金电极相比,以复合镀层电极作锌电解阳极时槽电压下降了160 mV,电流效率有所提高.
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