经二次阳极氧化制备了外表面不同孔结构的阳极氧化铝模板.用场发射扫描电镜(FE-SEM)对其形貌进行表征,发现在直接阳极氧化的铝箔的外表面自组装形成了规则的六方形的纳米孔,而在去除铝基、扩孔的另一外表面则形成了规则的圆形的纳米孔,外表面纳米孔的平均直径大约为80nm,孔间距大约为110nm,孔密度约为2.5×10n cm-2.在模板的内部形成相互平行且垂直于AAO模板外表面的纳米管的阵列结构,纳米管的平均直径大约为80nm;AAO模板的厚度大约为10/zm.粉末X射线衍射(XRD)表明模板具有非晶态的结构.记录了阳极氧化过程中的电流一时间曲线,探讨了自组织孔洞的形成机理,提出了新型阳极氧化铝模板制备纳/微米结构材料模拟应用.
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