The cathode is the source of the current flow.
You want the source to be silver.
If you have ANY confusion, use silver for both the cathode AND the
anode.
Actually you won't have to worry about current reversal, then.
Chuck
43% of all statistics are worthless.
On 9/8/2010 6:28:36 PM, David AuBuchon ([email protected])
wrote:
> Is there any reason everyone uses silver for the cathode? I can
> understand if people were reversing the polarity. But when things only go
> one way, does it matter what the cathode is made of? Could it just be
> copper wire?
>
> Also,
> isn't the surface area of the cathode important. With the anode, more
> surface area reduces the density of a layer of silver ions coming off,
> combining with hydroxide ions. At the cathode end, isn't
> there a dense layer of hydroxide combining with incoming silver ions?
>
> Thanks,
> ~David
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