Linnard?s hydrogen on demand system without electricity !

[ResinRat2]

Hi Chris,

Something else to consider is that inside the electrolyte solution there are magnesium and silver colloids that jump between positively charged ions and uncharged colloid particles. There is also potassium salt ions from the potassium hydroxide that carry a positive charge as well as the positive charged zinc ions. All these positively charged particles are attracted to the negative charged zinc electrode during the zinc regenerating process. So I can see in my mind all these ions plating on the zinc electrode during the regenerating process. The thicker the layer, the less and less regenerated zinc is actually being plated on the electrode over time. This hurts the zinc surface area and over time will slow the reaction down until all the zinc plated is no longer in contact with the zinc metal. The result is that the reaction stops.

The short regeneration times prevent this because it allows the zinc to plate only a thin layer, that is worked off over time before the next regeneration period. Always keeping the replated zinc in contact with the metal beneath, and hopefully working off the other positive ions that plate on the electrode as well. That is my hypothesis anyway.

It could be that the zinc regeneration electrode needs a quick "blast" of positive charge to blow the surface layer negative ions off every so often. Maybe for a few seconds once per day or so; to blow off the magnesium, silver, and potassium ions off the surface and start with a pure zinc coating again?

So I am going to shoot for short regeneration times of only seconds, and a bit longer non-regeneration times.

That's my reasoning anyway.

Thanks everyone for your interest.

[Tacmatricx]

Hi Dave,

I like the ideas!

What if we allowed a reaction to run for half a day without regeneration... removed the zinc electrode and replaced it with a tungsten electrode... then plated the tungsten to full capacity on that tungsten electrode and then tried the cycle?

It should be much harder to break the cell as the tungsten would not react? It would also be easy to see if the regeneration was too high etc...

With the copper setup I would be concerned with the Copper reacting with the strong alkali solution and polluting the cell?

I think i'll give the run it and replace it with another tungsten over the weekend... will let you know how it goes.

Cheers,

Chris

[ResinRat2]

Hi Chris,

It will work. I did that same procedure last year and the zinc does plate on the tungsten/carbide rod and it will run the reaction once the zinc is on there. I never went much farther with it because I started getting caught up with building a reactor that didn't leak; but I think you are right.

That may actually be the ideal way. Only a certain amount of zinc would be in the cell and it might run cleaner. Just keep plating the zinc and then running the cell. Two zinc plated rods would probably be ideal. One running the reaction and the other regenerating.

You are right about the copper. I started getting green contamination in the cell as time went on with the copper electrode. That's why I ended that direction of research.

[triffid]

I think I need to make a correction about canadian dimes,some, but not all,depends on the year they were minted were made of nearly pure nickle.And yes,I'll be able to play with both acids once I settle into my new place.Triffid

[Tacmatricx]

Hey RR,

I have my test cell reconfigured with all tungsten electrodes and am trying to get the zinc to plate on now... will let you know how it turns out... still not seeing any plating after two hours tho...

Chris