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need to check out the fibre glass reacting with KOH...Thanx for the info.
I remember reading somewhere that Sodium Hydroxide and Potassium Hydroxide make up for similar kind of generation
Could use Sodium Hydrox instead or does this react with fibre glass aswell.....any suggestions?
Statistics: Posted by ravzz — Tue Feb 08, 2005 2:03 am
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Non woven Fibre glass partitions are porous enough to let the generated hydrogen to the surface of the electrolyser.
You could probably use any other metal mesh other than SS and electroplate it with nickel to give corrosion resistance.
Good luck bro:wink:
Statistics: Posted by ravzz — Mon Feb 07, 2005 11:14 am
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The problem is S.S. screen or mesh is not cheap or easy to come by. If you do find a low cost place to get it let me know. Most of the time we use heavy grit sand paper, to score a "x" pattern on our plates to give a similar desired effect . The style of electrolyser we are using needs to be sealed and screen or gause is not , most of the plates are really close together , and loose wire mesh could short the circut.
I short I not saying that it can't be done, or there is not a place for it , it would be difficult to incorperate into my setup. The electrolyser would likly need to be a parallel unit .Happy Testing.
Statistics: Posted by rodney — Mon Feb 07, 2005 9:27 am
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1. I remember someone mentioning very very long time ago on this forum that pure nickel would make a brilliant catalytic electrode with very high corrosive resistance but no one seems to have followed up on that.
2. Why not use SS gauze / wiremesh as the electrodes.
MY DEDUCTION:
You would give the gas bubble generated a lesser and a curved surface area to cling on to than compared to the flat plates and it leaves the surface of the electrode much earlier due to the inherent wire's curvature on the surface this should end up exposing the surface of the electrode to the electrolyte earlier than the flat surfaces hence the total amount of area in direct contact with the electrolyte in the same amount of time is higher.
Correct me if I am wrong.
3. If nickel were indeed a good catalyst why not think of electroplating pure nickel onto the surface of the wire gauze/mesh or the SS plates even if it doesnt turn out to be a good catalyst, this could reduce the corrosion on the plate or mesh surface which might otherwise react with the SS (usually an alloy of Iron Nickel chromium and other trace elements in the case of SS 300 series Ni maximum of 20% in case of SS 310).
C'mon guys lets check if this actually works or if theres any specific mention on this somewhere in some nook over the net...paste a link if you do find one!!
Statistics: Posted by ravzz — Fri Feb 04, 2005 12:29 pm
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