In the present study, we investigated the effect of an anode temperature on current transient process during porous anodic alumina growth and morphology of the anodic layers. Alumina films were formed in a 0.4 M oxalic acid at a constant voltage mode and electrolyte temperature. The temperature of the Al anode was controlled by thermoelectric Peltier element and varied in the range of 5 °C–60 °C. Surface morphology of both sides of anodic films and their cross-sections were analyzed by scanning electron microscopy (SEM) with subsequent statistical analysis of the SEM images by ImageJ software. It was found that when anode temperature was increased from 5 °С to 50 °С the pores diameter and interpore distance has not changed, but the porous structure became more ordered. According to these results, the rate of chemical dissolution of the barrier layer and pore walls did not depend on the anode temperature. At the anode temperature of 60 °С, pores diameter has increased 1.7 times a...

中文翻译：

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铝阳极温度对纳米多孔阳极氧化铝生长速率和结构的影响

在本研究中，我们研究了阳极温度对多孔阳极氧化铝生长过程中电流瞬变过程的影响以及阳极层的形态。在0.4 M的草酸中以恒定电压模式和电解质温度形成氧化铝膜。铝阳极的温度由热电珀尔帖元件控制，温度范围为5°C至60°C。通过扫描电子显微镜（SEM）分析阳极膜两面的表面形态及其横截面，然后通过ImageJ软件对SEM图像进行统计分析。已经发现，当阳极温度从5°С升高到50°С时，孔直径和孔间距没有改变，但多孔结构变得更有序。根据这些结果，阻挡层和孔壁​​的化学溶解速率不取决于阳极温度。在阳极温度为60°С时，孔直径增加了1.7倍。