liquidlightning
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Electrodes
Will gold hold up as an electrode as well as platinum?
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hissingnoise
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The short answer is no! Gold is attacked when used as anode in a chloride electrolyte ─ its chloride appears as a progressively-forming greenish
coloured surface coating.
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Swede
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There are really only four practical anode materials for (per)chlorates, if that is what you are after.
- graphite
- MMO/DSA
- Lead dioxide
- Platinum
With the latter two making perchlorates as well. There are other materials being investigated. Boron-doped diamond electroplated on a suitable
substrate shows great promise but it remains a bit exotic for now.
Just about every other likely material has been tried, and they all fail, either not producing chlorate, crumbling to dust, or both.
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Swede
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Speaking of boron-doped diamond, has anyone found a source? The one I did find was scary expensive, at $400+ for a "BDD electrode in Teflon 3mm
diameter".
Ouch...
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