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Temperature effects on the anodic Al-dissolution in acetic acid buffers

✍ Scribed by T. Våland

Publisher
Elsevier Science
Year
1980
Tongue
English
Weight
516 KB
Volume
25
Category
Article
ISSN
0013-4686

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✦ Synopsis

The anodic Al-dissolution reaction has been studied by using the potential step technique at various temperatures. From these experiments the activation energy of the reaction was determined. It was found that potential change during the potential step has only minor influence on the activationenergy. The potential at which the electrode was stabilized had a pronounced effect, though causing the activation energy to diminish by increasing the stabilization potential. The results indicate that thechange in activation energy is mainly due to alteration in the oxide composition during prolonged stabilization at a certain potential.

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