seperate tank electrolysis

If I were to have 2 seperate buckets, one with ground and the other with something like 9 volts nothing would happen because the 2 bodies of water arn't connected. If I were to join the two bodies of water using a wire would electrolysis take place?

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Austringer10 years ago
I'm confused by something T0 - when you start, what is in your two chambers?
It'll work, but I didn't expect your results If you want to do plating, I think you could try using a salt-bridge, but I'll have to look it up in my chem txtbook again. What'r you trying to do?
guyfrom7up (author)  T3h_Muffinator10 years ago
I'm trying to design a fuel cell, and afer the test I'm going to use a metal plate to sperate the waters so that the gasses are seperated, which is required to get the electricity back out.
Do you just need two tubes of each respective gas, or do you need two subcells, each that produces the compliment gas of the other?
guyfrom7up (author)  T3h_Muffinator10 years ago
my goal is to make a AA size fuel cell. A divider will seperate the tube of the cell into 2/3 and 1/3, so that you get equal pressure for the oxygen and the hydrogen. Please don't steal my design, I promised Nacho that I'd make an instructable about it.
AA fuel cell.jpg
You need a permeable barrier, not a metal one. It MAY be as simple as something that keeps the O2 bubbles on one side and the H2 bubbles on the other, or it may need to be much more complicated : )
guyfrom7up (author)  jtobako10 years ago
my aluminum barrier will work. When charging hydrogen bubbles will form around the negative platinum coils and oxygen bubbles will form on the right side of the alluminum barrier. When discharging the 2 platinum coils will do all of the work. I'm pretty sure this'll work, I did some experiments Another Pro with my design (took me abut 20 minutes to come up with a good solution) is that it'll work no matter what position it's in.
Could you explain something for me? How, physicaly, are the different parts of the water molecule going to get past the aluminum barrier? If 2 H2O become H2 and 2 -OH at one electrode, and 4 -OH become O2 and 2 H2O at the other. How do the other half of the water get past your aluminum barrier?
Patrik jtobako10 years ago
Actually, what you need is called a proton exchange membrane.

In essence, you need something which is permeable to hydrogen atoms (or rather, H+ ions, aka protons), but not to H2 or O2 molecules.

PS: before you spend a lot of $$ on platinum to build this - you may want to take a few minutes to calculate how much energy you could store in an AA size fuel cell like this. You may also want to think about what happens when you turn a liquid into a gas in an enclosed space...
guyfrom7up (author)  Patrik10 years ago
I'm pretty sure my design works, try it yourself if you are in doubt, I tried it and it works.
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