octave
Harmless
Posts: 39
Registered: 4-11-2007
Member Is Offline
Mood: Working.
|
|
Metal passivation prevention?
In an electrochemical cell I've been experimenting with I have an iron anode. After about 20 minutes the cell just cuts off. I think this is due to
the iron passivating by forming a protective iron oxide layer on its surface. Is there any way to prevent this?
|
|
|
Klute
International Hazard
Posts: 1378
Registered: 18-10-2006
Location: France
Member Is Offline
Mood: No Mood
|
|
What was the anolyte? I would think if you used dilute acid there wouldn't be any pasivation. Or just use PbO2 anode?
\"You can battle with a demon, you can embrace a demon; what the hell can you do with a fucking spiritual computer?\"
-Alice Parr
|
|
|
octave
Harmless
Posts: 39
Registered: 4-11-2007
Member Is Offline
Mood: Working.
|
|
The anolyte is NaOH and I have to use an iron anode  . The only way I could get
around using an iron anode and use somthing inert is switching the anolyte to a soluable iron salt/NaOH.
|
|
|
12AX7
Post Harlot
Posts: 4803
Registered: 8-3-2005
Location: oscillating
Member Is Offline
Mood: informative
|
|
Iron or stainless should work fine as an anode in NaOH.
Tim
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
