-----Original Message----- From: Abd ul-Rahman Lomax > From the SPAWAR work, I'd go for gold cathodes, and plate them with palladium. Or I'd use gold-plated silver wire, then plated with palladium...
It may be coincidental but of the four noble metal electrode candidate: Ag, Au, Pt and Pd - all of them are spillover catalysts, but gold appears to be the more active ahead of Pd and Ag is the weakest. However, if you are going to use several layers of plating, which is good, then there is no reason not to start with copper as the base - for reasons of cost control. Copper wire, heavy silver, flash gold and flash palladium would be a prime recommendation if you want maximum spillover at minimal cost for use with deuterium (not H2) but it must be supported by a dielectric. Winding the plated wire on a ceramic mandrel should do that. BTW: Flash plating = nano thickness. If you are using hydrogen, substitute Ni for Ag. This is based on my understanding of dozens of paper (maybe 100) going back 30 years and done primarily (almost exclusively) for petrochemical catalysis - which is the main use of the spillover technique. Silver is almost never used. This may or may not have any relevance to LENR, unless spillover is directly involved. Jones
