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Author Topic: KARPEN PILE  (Read 232116 times)

profitis

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Re: KARPEN PILE
« Reply #525 on: August 16, 2014, 12:30:29 PM »
And another spontaneously reversed potential against the standard table in alkaline solution.Pt + 2OH- >< Pt(OH)2 + 2e-..-0.15v(standard)/MnO2 + 2H2O + 2e- >< Mn(OH)2 + 2OH-..+0.05v(standard).this is again because of faster O2 forward kinetics on MnO2 catalyst than on smooth Pt catalyst.this will not work under argon.please note,for convention I ascribe a minus (-) sign to standard potentials below  hydrogen and (+) to above hydrogen(0.0v)
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pomodoro

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Re: KARPEN PILE
« Reply #526 on: August 16, 2014, 03:35:13 PM »
Ever tried iron as a cathode in the hydrogen cells?
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profitis

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Re: KARPEN PILE
« Reply #527 on: August 16, 2014, 04:24:01 PM »
I've measured it as anode,results inconclusive,seemed weak.
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pomodoro

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Re: KARPEN PILE
« Reply #528 on: August 16, 2014, 04:25:48 PM »
Steel wool, large surface area.
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profitis

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Re: KARPEN PILE
« Reply #529 on: August 16, 2014, 04:34:43 PM »
Platinized platinum has higher work function than platinum smooth.although it concentrates o2 better than the smooth it releases o2 to electrolyte easier than the smooth,less tightly bonded to the o2 gas.quite perverse.
« Last Edit: August 16, 2014, 06:55:52 PM by profitis »
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profitis

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Re: KARPEN PILE
« Reply #530 on: August 16, 2014, 04:36:12 PM »
Etched iron even larger area
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profitis

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Re: KARPEN PILE
« Reply #531 on: August 17, 2014, 01:14:09 PM »
 submerged nickel vs Pt foil in alkali an astounding 0.04v with the nickel as cathode(!)Not anode.
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profitis

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Re: KARPEN PILE
« Reply #532 on: August 20, 2014, 10:01:17 AM »
@sarkeizen.all hydrogen encapsulated experiments require excessive knowledge,skill and experience.all air oxygen experiments require none of the above.therefore we conclude all oxygen air experiments in this thread to be 100% consistent with karpen expectations and repeatable by anyone.
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pomodoro

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Re: KARPEN PILE
« Reply #533 on: August 20, 2014, 10:22:50 AM »
Here is my latest test.  Massive surface area steel wool.

Steel wool , degreased in dichloromethane, etched iin dilute HCl, washed many times with deionized water.

Newly prepared palladized platinum, 1M NaOH , UHP hydrogen.

When initially fired up, volts rise to +500 mV wrt the Pd/ Pt electrode.
Discharge through meter is huge, peak well over 10mA, and discharge goes over many minutes at over 1mA.

A lot of this is due to any oxygen still in the cell and any oxides that formed on the steel wool.  Cell is shorted  now out for over 12 hours to force all oxygen and oxides to reduce.

Please see video of the very initial discharging. A followup will be posted after the overnight discharge.
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MarkE

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Re: KARPEN PILE
« Reply #534 on: August 20, 2014, 11:12:13 AM »
The meter peg is impressive.
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pomodoro

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Re: KARPEN PILE
« Reply #535 on: August 20, 2014, 01:56:43 PM »
Attached are pics of a failed copper cathode Karpen. Somehow I could not get the copper to become cathodic. I tried both acid and alkaline electrolyte. Having the copper as anode , even with hydrogen around makes it difficult to rule out anything but the hydrogen being oxidized. I assumed the copper pipe contained other alloyed substances which are more easily oxidized.
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MarkE

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Re: KARPEN PILE
« Reply #536 on: August 20, 2014, 02:33:44 PM »
Copper snail abatement tape for keeping snails off trees is available from the home improvement store garden section is rather pure and reasonably cheap.
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profitis

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Re: KARPEN PILE
« Reply #537 on: August 20, 2014, 03:47:43 PM »
I've never done the hydrogen cell before with iron as cathode,will be interesting to see result although I'm not expecting miracles with it(I'm expecting it to go anodic not cathodic).copper wire from a normal appliance lead is basicly purish copper.I simply use a single bundled etched(HNO3) strand of such wire as all my copper cathodes.you must be careful of alloys yes.brass and bronze are a no-go.pure Gold is the ultimate cathode material for scientific hydrogen spillover results in alkali or acid.
« Last Edit: August 20, 2014, 06:48:52 PM by profitis »
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profitis

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Re: KARPEN PILE
« Reply #538 on: August 20, 2014, 04:07:37 PM »
Pomodoro if you use pure gold as your cathode the chances of success go dramaticly up.use a big a piece as you can get.plate it thick onto etched silver
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pomodoro

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Re: KARPEN PILE
« Reply #539 on: August 20, 2014, 05:29:41 PM »
Mercury is next then I'm packing up. Gold plating on carbon no good.  If these cells work I think cathode needs to be far deeper away from hydrogen. They only work due to lower activity of hydrogen ie concentration cell.
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