KARPEN PILE

[pomodoro]

No gold. I might be able to plate gold.  Look I'm willing to try one more test, just one and it needs to be something related to these hydrogen cells and that is documented as being done by karpen. Are the above docs any good. What hydrogen cell is being talked about and what voltage or current did he get. No more fooling around with un documented systems.

[profitis]

You read my mind pomodoro (-:. Yes absolutely strictly along the lines of successful document tests from now on.my french really sucks but I could make out that pressure tends to raise potentials in hydrogen capsules.he got about 0.160v between black and smooth Pt at normal pressure and 0.7v under pressure if I'm not mistaken.he revealed nothing about other metals that I can make out there.the 1956 document is of extreme interest because it specificly names gold,which is also what the chinese tinkered with.I suggest gold plated onto glassy carbon surface(non porous) and afterward briefly etched in aqua regia.a hot boiling rinse in sodium carbonate sol will be required after etch to remove adsorbed chlorine gas and HNO3.you will have to plate quite thickish.I suggest the use of ammonium sulfate for electolyte in the karpen battery as opposed to the sulfuric which they used.ammonium sulfate is mildly acidic and has the advantage of lowering surface tension in solution much like bases do(its solution wets surfaces).dilute sulfuric acid does not wet surfaces.

[profitis]

You will have to be extra cautious about air leaks this time because O2 potential drasticly larger in acidic solutions.

[profitis]

The chinese after 10months playing with a sealed Pt(black) and smooth gold got an totaly stable 0.3v in H2SO4 aquaeous.other electrolytes they got higher or lower voltages.they got stable volts with Pt(black) vs Pt shiny too.

[profitis]

Neither karpen nor the chinese mentioned anything about current.that is up to me and you to maximize.