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室温下,以纯铝箔为基材,采用二步阳极氧化法,在0.3mol/L草酸溶液中制备了大面积的双面氧化铝膜。在氧化过程中,电流呈现降低、升高、平稳、再降低的变化,最后接近于零。X射线衍射结果显示,双面氧化铝膜为无定型结构。扫描电镜结果显示:每面氧化铝膜的总厚度约为50μm,孔径分布为50～100nm。利用制得的双面氧化铝膜为模板可以制备出一维ZrO2和TiO2纳米管/线。该大面积双面氧化铝膜的制备方法过程简单、易控制、重现性好,且形成的氧化铝膜形貌规则,可以作为合成纳米功能材料的模板。
At room temperature, a pure aluminum foil was used as a substrate, and a two-step anodic oxidation method was used to prepare a large area of double-sided aluminum oxide film in a 0.3 mol / L oxalic acid solution. In the oxidation process, the current showed a decrease, increase, steady, and then reduce the change, and finally close to zero. X-ray diffraction results show that the double-sided aluminum oxide film is amorphous structure. Scanning electron microscopy results showed that the total thickness of the alumina film on each side was about 50 μm and the pore size distribution was 50-100 nm. One-dimensional ZrO2 and TiO2 nanotubes / wire can be prepared by using the prepared double-sided aluminum oxide film as a template. The preparation method of the large-area double-side aluminum oxide film has the advantages of simple process, easy control, good reproducibility, and regular morphology of the formed aluminum oxide film, which can be used as a template for synthesizing nano-functional materials.