Interesting site, Ivan. The particular link to rotating electrode stuff is: http://www.bath.ac.uk/~chsacf/java/electrochemistry/elec/l7html/hydro.htm. The emphasis there is on separating electrochemical transport effects from each other, but offers a few useful hints.
Material at http://www.bath.ac.uk/~chsacf/java/electrochemistry/elec/l6html/cvac.htm has caused me to revise what was said below: I had not allowed for a variable capacitive double-layer effects which apparently can be quite significant in certain AC conditions. Unfortunately there is no indication of frequencies in that 'refresher' article, so hard to say whether there is any relevance to the polarity reversal experiments of Steve. Diffusion effects as per: http://www.bath.ac.uk/~chsacf/java/electrochemistry/elec/l4html/cv.htm are interesting but refer to stagnant electrolyte situations. Something more to consider though. regards, Kevin Nolan ken...@optusnet.com.au ----- Original Message ----- From: "I Anderson" <i...@win.co.nz> To: <silver-list@eskimo.com> Sent: Monday, January 21, 2002 9:24 PM Subject: RE: CS>Polarity Switch Experiment > Hi Kevin, > > You may be right, most of the current sag may well be in the build up > of charge in the electrode/water double layer. And without in depth > study I am not in a position to argue the toss. But it undoubtedly > true that the current passes through zero at each polarity change > ...how much this slows the reaction I cannot say. > > Here is a nice site with some info ...also on various rotating > electrodes. > > http://www.bath.ac.uk/~chsacf/java/electrochemistry/elec/l6html/cvac.h > tm > > > Regards > Ivan. > > > -----Original Message----- > > From: Kevin Nolan [mailto:ken...@optusnet.com.au] > > Sent: Monday, 21 January 2002 2:42 a.m. > > To: silver-list@eskimo.com > > Subject: Re: CS>Polarity Switch Experiment > > > > > > Ivan - inertial effects are completely negligible in any > > electrolysis setup. > > The relaxation time (roughly a dividing line between > > resistive and inertial > > response) for ions in water is I think of the order of 10^-13 > > seconds or so. > > Even taking the electrolysis setup - container plus DW plus > > electrodes, as a > > capacitor, the electrical system relaxation time would be > > much less than a > > microsecond. The rise and fall in current is undoubtedly a > > consequence of > > the electrodeposition and subsequent dispersal of a > > semi-insulating deposit > > on the electrodes - the 'plate-out' of silver. Current fluctuation > is > > mirroring electrode surface resistance fluctuation. > > > > regards, Kevin Nolan > > > -- > The silver-list is a moderated forum for discussion of colloidal silver. > > To join or quit silver-list or silver-digest send an e-mail message to: > silver-list-requ...@eskimo.com -or- silver-digest-requ...@eskimo.com > with the word subscribe or unsubscribe in the SUBJECT line. > > To post, address your message to: silver-list@eskimo.com > Silver-list archive: http://escribe.com/health/thesilverlist/index.html > List maintainer: Mike Devour <mdev...@eskimo.com> >
