Do you usually use a potassium salt?
On Tue, May 14, 2013 at 2:50 PM, DJ Cravens <[email protected]> wrote: > yes the silver alloy (anywhere from 20 to 25 % seems OK with 23% perhaps > better). It doesn't seem to load as high but it doesn't "crack" near as > much. Regular Pd will often crack as it gets very hard on loading. My > personal preference is 5% Rh but the cost is prohibitive. The 10% Y is > also good. The pure Pd (better than 4 nines) is very very temperamental. > > Another approach is to lightly coat your "rod" with Nafion to keep the > surface impurities down during electrolysis which helps when your chemistry > is a little sloppy (like mine often is). But you still need to not crack > the Pd. Again load very slowly and preferably down around 10 C. > > I really hope you do start down the experimental path- we need more > experimenters. > > If it is just going to be a few quick and dirty tries, you might want to > look at co-deposit systems. Pd on Au on Cu is a reasonable place to > start. (again, do your plating and loading cold before your do you runs). > > Some info is hard to find and is often over looked but the only real > "secret" I know in this field is *tenacity.* > > Dennis > ------------------------------ > Date: Tue, 14 May 2013 14:08:42 -0400 > > Subject: Re: [Vo]:If I want to see it for myself... > From: [email protected] > To: [email protected] > > DJ Cravens <[email protected]> wrote: > > > but if it is replication (at lower densities) you seek- try the Pd 23% Ag > material used in diffusion systems. > > "Diffusion systems" is what I have referred to as "hydrogen filters." As > noted hydrogen with silver. This is what JM recommended to Martin. It loads > well without cracking. So they said and he confirmed. > > - Jed > >
