以Zn( NO3)2·6H2O,Al(NO3)3·9H2O,尿素为原料,采用均相沉淀法,制备出碱式碳酸锌粉末,之后将前驱体在氢气气氛下煅烧,制得Al掺杂氧化锌导电粉.利用SEM,TGA,XPS和XRD等分析手段对材料性能进行表征,研究了Al掺杂氧化锌导电性能的影响.结果表明:随着Al3+掺杂量的增大,粉体体积电阻率先降低后升高,Al3+掺杂含量在1.5％(摩尔分数)时电阻率最低,为1.05×105Ω·cm.掺杂后的ZnO为六方纤锌矿结构,颗粒呈类椭球形,粒度分布窄,导电性能明显提高.
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