Abstract—

The results of a study of the morphology and chemical structure of iron coatings deposited on nanostructured surfaces of aluminum and porous alumina by the thermal deposition method before and after the cathodic hydrogen evolution reaction are reported. It is shown that an increase in the diameter of pores on the surface of alumina does not lead to a change in the cathode current density due to the different contribution of the boundary between the pores to the total surface area of the sample, whereas an increase in the size of hemispherical pits on the surface of aluminum plates leads to an increase in the cathode current density, which indicates an increase in the hydrogen evolution efficiency. No changes are detected in the morphology and chemical structure of the surface before or after the reaction.

中文翻译：

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高度发达的铝和多孔氧化铝表面上的纳米结构铁涂层的形貌，化学结构和阴极性能

摘要—

报道了在阴极氢析出反应之前和之后通过热沉积方法对沉积在铝和多孔氧化铝的纳米结构表面上的铁涂层的形态和化学结构进行研究的结果。结果表明，由于孔之间的边界对样品总表面积的不同贡献，氧化铝表面孔直径的增加不会导致阴极电流密度的变化，反之，铝板表面上半球形凹坑尺寸的增大导致阴极电流密度增加，这表明氢释放效率增加。在反应之前或之后，未检测到表面的形态和化学结构变化。