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OUPower.com • View topic - Ideas for membranes/seperators

Ideas for membranes/seperators

This forum is for discussing anything related to electrolysis and electrolyzer designs.

Ideas for membranes/seperators

Postby Jehu » Mon Jul 20, 2009 7:49 am

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Postby kevinsatterfield » Mon Jul 20, 2009 9:44 am

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Postby Jehu » Mon Jul 20, 2009 10:40 am

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Postby kevinsatterfield » Mon Jul 20, 2009 10:51 am

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Postby Jehu » Tue Jan 18, 2011 11:07 pm

Figured I'd res this old thread due to some of the things I've found.

The reason why the paper doesn't get destroyed by the acids is because they are rather weak. I discovered this when researching how to make cellulose into a fermentable sugar. It turns out the concentration of sulfuric acid needs to be over 70% for it to start to damage it. Really you need it around +90% for it to react right. Even Hydrochloric acid needs to be at boiling to have the same effect.

Therefore, yes, it seems like we could use cotton wool or paper as a membrane.

Also terracotta flower pots work well. I've tried this myself. You need to plug up the little drain hole in the bottom with something though. So I don't see why you couldn't use something like some cheap tiles with the glaze ground off.
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Postby peterZA » Mon Apr 18, 2011 12:43 pm

I remember seeing someone on youtube that used ripstop nylon between the plates to separate the hydrogen and oxygen gasses, dont remember his user name tho.

Used a soldering iron with a sharp point to cut the template out of the big sheet, looked as if it worked quite well.
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