以多孔阳极氧化铝(AAO)膜制备纳米材料时降低AAO膜孔径至关重要,降低电压无法达到要求,而降低氧化温度可实现这一目标。在0.4mol/L H3PO4溶液中加入70%~80%(体积分数)1,3-丙三醇(PDO),于-10~10℃下恒压110V阳极氧化1h制备了多孔阳极氧化铝(AAO)膜,并在0.50mol/LH,B03和0.05mol/L Na2B4O7溶液中于20℃下以0.5mA/cm。进行填孔后处理。利用SEM,EDS,XRD分析了AAO膜的表面彤貌与组成。并对AAO膜填孔前后的极化曲线和交流阻抗谱进行了测试。结果表明,膜孔径随氧化温度降低而降低,80%PDO,10℃所得AAO膜的成分包括65.94%(质量分数,下同)Al,12.79%C,20.29%O和0.98%P;随氧化温度升高和PDO含量下降,AAO膜的稳定电流密度增大;随氧化温度升高,膜阻挡层厚度增大;填孔试验前AAO膜只存在一个阻挡层的相位角峰,填孔后出现两个峰,中高频段体现封闭的阻挡层特性,低频段体现的是多孔层封闭部分的特性。
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