Abstract
The results are presented of obtaining anodic aluminum oxide with an ordered pore arrangement by employing two anodizing modes - galvanostatic mode and combined (galvanostatic + potentiostatic) mode, at high values of the current density and voltage. Use has been made of an oxalate electrolyte and a complex electrolyte comprising oxalic acid and phosphoric acid.
Highlights
Anodic aluminum oxide (AAO) has been used for various applications in the fields of optoelectronics, energy storage, separation, sensing, etc. [1,2,3,4,5,6,7,8,9,10,11]
The scanning electron microscopy (SEM) images of the electrolyteoxide interfaces for all specimens obtained are typical of the ordered oxide obtained in the potentiostatic modes [19]
The possibility has been demonstrated of forming anodic aluminum oxide with an ordered pore arrangement by employing the galvanostatic anodizing mode and a combination of the galvanostatic and potentiostatic modes, which allows the use of such methods in industrial applications
Summary
Anodic aluminum oxide (AAO) has been used for various applications in the fields of optoelectronics, energy storage, separation, sensing, etc. [1,2,3,4,5,6,7,8,9,10,11]. The results are presented of obtaining anodic aluminum oxide with an ordered pore arrangement by employing two anodizing modes - galvanostatic mode and combined (galvanostatic + potentiostatic) mode, at high values of the current density and voltage. A two-step method of obtaining ordered structures of anodic aluminum oxide is described in [18].
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