I've read that lead dioxide works as well as platinum. It's the red stuff in the car battery plates. You Tube shows it's easy to plate it onto a carbon rod, treated with nitric acid. But if you get the carbon from a flashlight battery, be aware that the manganese oxide is nasty stuff and can cause kidney failure.
wow thats nice... i tried to plate over stainless steel... but it didnt worked as stainless steel has a layer of oxygen and it does not glue on... so i made a treatment to the plates with nickel stricke material this way i could get the palladium on it... but as i could not get pue platinum foil as was too expensive i didnt proceeded.. the palladium foil costed at the time 200$ 6g... platinum was over twice the price...but not only that platinum have more mass than palladium per volume... so fo a decent foil it would need more than just twice the grams ... this is very interesting,,,,
my intention was to create a um layer on the plates,... the plates were 30 cuted in laser and have a copper termination soldered with silver soldering... than treated with nickell
this project is stop until i find someone who know very well about chemistry and maybe give a help with platinum foils... for now i´m out of money to play like that..
i wont try using batery, but thanks for the advice man i didnt knew it was so so dangerous!
i dont even have the proper safe equipment... is very dangerous dealing with pure amonia hydroxide and HCL ... i have saw how danger it can be but i stoped this project when i broken my hand and could not make it properly for 3 months because of that than my life turned all around... and i had to get back to the old idea!
Probably would be better some other type of material as the base... but i got stainless steel because this project was together with an inventor here in brazil who i worked with... in the willing to put his device out that we expend all this money.. around 20,000 reais went into it.. back in 2012 around 10k$ i had a friend who helped me to get the money together... but the old man didnt knew how to plate the chemicals than i had to find out but when i did it money was already gone and the old man went to another country to go on with another project.. so i gave up on this and got my CC cores and some neodimium magnets back so i could use in my reasearch...
i also read that lead act as a catalyser too.. there are others too but platinum and palladium have specific afinities and that was the point of the project...
manganese and barium oxides also can form polar electrodes...