Hello,
I read that some patent suggest the use of nickel for electrode. Anyone ever use pure nickel as electrode for HHO generator?
I do some experiment yesterday, using nickel hydroxide extracted from NiMh batteries. The other component is:
- two big 1.5 volts batteries.
- water added with a tea spoon of salt
- cable
- stainless steel pan
It only produce very small non released bubble in a minute in a spoon. It will produce a lot continuously released bubble using nickel hydroxide. It only produce bubble when it get negative current though.
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if it is in a battery, it should be a good electrolyte, given it doesn't react with the water in a bad way.
Batteries use potassium hydroxide as the electrolyte.
I would get rid of the salt and use that.
Quote from: AbbaRue on October 10, 2008, 11:40:22 PM
Batteries use potassium hydroxide as the electrolyte.
I would get rid of the salt and use that.
I see, I didn't know about that, thanks for the info. Too bad already throw the rest of the batteries away. For how many days can the electrolite form the battery be used for HHO generator for 100cc engine?
I plan to use this nickel hydroxide in my generator. I wonder why I never read anyone use it. It produce bubble much much more than spoon stainless steel that I also tested. The spoon only produce some very small bubble on it's surface in a minute, while the nickel hydroxide release continuous bubble. It will also produce gas even when using single battery. It will still release gas using spring water on two battery.
I wish someone can test how nickel hydroxide with PWM and NaOH/KOH, compared with 316L grade steel.
If more bubble happen just because of this nickel hydroxide have same rating as 316L grade steel, I would still be using this metal since for me those bubble generation seems to be enough.
Maybe I should test Lithium Ion next.........
Nickel, Paladium, and Platinum which are all in the same column of the periodic table have one thing in common.
They all absorb many times there own weight in hydrogen. I believe Paladium absorbs 3000 times it's weight in hydrogen.
This is why they have been considered as a way to safely store hydrogen for use in cars.
They are quite expensive as well, much more expensive then stainless steel.
I see. Thanks for the info.
Do you know what metal combination that can produce most gas but with material still easy to get?
I am thinking maybe we can get rare material from scrapped something.
I think I know the reasno why the small metal give more bubble.
I do another experiment, this time with ground water only and 9 volts battery.
Half submerged spoon will release bubble when using 9 volts battery. More current detected when the spoon is submerge into water more.
When using 1.5 volts battery, half submerged spoon do not release bubble. The bubble is formed on it's surface after a while but not released. But when it's only the spoon tip that touch water, it will release bubble.
From my experiment I conclude that:
- Electrode area size need to be matched with electrolyte and voltage used. Too big will prevent bubble release, too small is not efficient.
- Drawn current increase on surface area size and reduced electrode distance
I made mistakes. It turn out that small metal in the middle of battery is not nickel hydroxide. It's the outside part. More bubble caused by smaller surface area.
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Quote from: AbbaRue on October 14, 2008, 03:07:21 AM
...
I believe Paladium absorbs 3000 times it's weight in hydrogen.
...
Not its weight. Its volume. Palladium can absorb up to 900 times its own volume of hydrogen (this does not change much the weight of palladium).
Some canadian dimes are made of nearly pure nickle.It depends on the year they were minted.An internet search should tell you which tears.Triffid
Sorry,years,not tears.Triffid
Thanks :).