- #1
Excom
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Hi All
I hope that someone where can help me out.
Let's assume that we take a piece of Al foil and a Pt wire and put them into an ionic solution. We then apply a voltage difference of 2 V between the two. Al(+) and Pt(-). After a few seconds the Al electrode starts to corrode. Nothing new about that but can anyone tell me what happens before the corrosion starts? I assume that the aluminum oxide is being removed. I am interested in figuring out what voltage that is needed to remove the aluminum oxide. And the kinetics of it.
If this can be described in a theoretical manner I will prefer that as I would like to compare different metal oxides at different voltages.
Thanks
Best regards
Tom
I hope that someone where can help me out.
Let's assume that we take a piece of Al foil and a Pt wire and put them into an ionic solution. We then apply a voltage difference of 2 V between the two. Al(+) and Pt(-). After a few seconds the Al electrode starts to corrode. Nothing new about that but can anyone tell me what happens before the corrosion starts? I assume that the aluminum oxide is being removed. I am interested in figuring out what voltage that is needed to remove the aluminum oxide. And the kinetics of it.
If this can be described in a theoretical manner I will prefer that as I would like to compare different metal oxides at different voltages.
Thanks
Best regards
Tom