Hydrogen by Electrolysis

I would use platinum for both poles to avoid contamination from oxidation products. (actually attack of the anode by the oxygen...But Thats the way I am.

milo

I use Bubblenoium 243. It makes the extraction process seemless.

Good luck!

Hi..Stainless Steel is known to work well. Good plans available, try typing "smacks booster" into your search. Be carefull and employ all safety precautions in your build.

kilomark

Years ago (20) I used platinum coated titanium manufactured by Degussa, Germany. It was worth the money. Go and have a look what they have on offer now a'days. Good luck, Ky.

Anything that is conductive and that will not react with the electrolyte or oxygen would do the job.

There is a good page on electrolysis on Wikipedia.

Salt water chlorinators for swimming pools seem to be using Ti electrodes

Nickel metal works very well for both electrodes in the electrolysis of water under alkaline conditions (i.e., using sodium hydroxide or potassium hydroxide as the electrolyte). Nickel catalyzes the reaction (especially the oxidation step), but it is fairly expensive, so this might be practical only on small scales. I hear that stainless steel works well, with slightly lower efficiency, but very affordable (again with hydroxide electrolyte). Platinum is probably much too expensive for your application.