The cathode (in this case the negative terminal) can be copper if you are not polarity switching.
The anode (in this case the positive terminal) must be silver. You can see I don't agree with cking, as usual... Dan On Wed, Sep 8, 2010 at 5:28 PM, David AuBuchon <aubuchon.da...@gmail.com> 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 > -- The Silver List is a moderated forum for discussing Colloidal Silver. Rules and Instructions: http://www.silverlist.org Unsubscribe: <mailto:silver-list-requ...@eskimo.com?subject=unsubscribe> Archives: http://www.mail-archive.com/silver-list@eskimo.com/maillist.html Off-Topic discussions: <mailto:silver-off-topic-l...@eskimo.com> List Owner: Mike Devour <mailto:mdev...@eskimo.com>
