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Topic: Atomic Hydrogen via Tungsten  (Read 8270 times)

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Offline ifuller

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Atomic Hydrogen via Tungsten
« on: January 04, 2008, 02:46:47 PM »
Hello,
I have heard that a heated tungsten filament will essentially split hydrogen gas into atomic hydrogen. Is this true? If so does anyone know why this is? I guessed that the tungsten might act as a catalyst but I am not sure. Does anyone know any websites that I might find more detailed research on this reaction? Thanks in advance to all.

Offline Arkcon

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Re: Atomic Hydrogen via Tungsten
« Reply #1 on: January 04, 2008, 03:55:31 PM »
Do you mean a tungsten arc torch, used to weld tantalum in an atmosphere of atomized hydrogen, or do you mean hydrinos, long touted, but dubiously proven energy source?
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline ifuller

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Re: Atomic Hydrogen via Tungsten
« Reply #2 on: January 05, 2008, 12:11:16 PM »
I think what I am thinking about is a tungsten filament like that in an incandescent light bulb. I read somewhere that putting this hot filament into a hydrogen environment would work to split H2 into atomic hydrogen. Hope this helps. Sorry I wasn't more clear.

Offline ARGOS++

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Re: Atomic Hydrogen via Tungsten
« Reply #3 on: January 05, 2008, 04:13:41 PM »

Dear Ifuller;

Principally it must work!

   H2  <------>    2 H°      ΔH°R = 436.22 kJoule/mole.

It is reported that already heating to a few times 1’000 °C  is sufficient (Mp. Tungsten 3422 °C)!
No catalytic effect of Tungsten is reported jet.
A same/similar Effect with Deuterium is used for UV-Lamps in Spectroscopy.
The balance of the reaction can be modified at least by pressure, but recombination will immediately take place.

Better generators for are the Reactions/Methods of  R. W. Wood  and of  I. Langmuir, as reported.
You will have to search for them in Libraries.

I hope to have been of help to you.

Good Luck!
                    ARGOS++

Offline ifuller

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Re: Atomic Hydrogen via Tungsten
« Reply #4 on: January 06, 2008, 11:25:21 AM »
Thank you for the information. Yes it does help. So pretty much you think it is simply the heat generated from the lit filament rather than a catalytic effect of the tungsten? Thanks again.

Offline ARGOS++

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Re: Atomic Hydrogen via Tungsten
« Reply #5 on: January 06, 2008, 02:41:51 PM »

Dear Ifuller;

You’re welcome!   ─   Soon again.

Yes!  ─  At least all sources I know report this way.

For the Deuterium/Hydrogen Example in Spectroscopy the “generated” atomic species exist first in an exited state and emit their characteristic UV radiation to reach the “Groundstate” just before they recombine.

Good Luck!
                    ARGOS++


Offline ifuller

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Re: Atomic Hydrogen via Tungsten
« Reply #6 on: January 15, 2008, 02:07:49 PM »
Does anyone know where I can find the specific temperature at which the hydrogen bonds break forming atomic hydrogen? I know they will very quickly recombine but I am still interested in that specific temperature. Thanks

Offline ARGOS++

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Re: Atomic Hydrogen via Tungsten
« Reply #7 on: January 15, 2008, 03:41:22 PM »
Dear IFuller;

In the following papers atomic Hydrogen plays a very important rule, but I have no access to this literature yet:

Hot-Filament-Method:
Diamond growth by hot-filament CVD: State of the art
R.Haubner, B.Lux: Diamond and Related Materials 2 (1993) 1277-1294

Microwave-Method:
Effects of microwave plasma deposition parameters on diamond coating formation on SiAlON substrates
A.Lindlbauer, R.Haubner: B.Lux, Refractory Metals &amp; Hard Materials 11 (1992) 247-258

DC-Glow-Discharge-Method:
Characteristics of a Pulsed DC-Glow Discharge CVD Reactor for Deposition of Thick Diamond Films
P.Hartmann, R.Haubner, B.Lux: Refractory Metals & Hard Materials 16 (1998) 207-216

So it maybe possible that they discuss it more detailed, or give better references.

Good Luck!
                    ARGOS++


Offline ifuller

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Re: Atomic Hydrogen via Tungsten
« Reply #8 on: February 24, 2008, 02:23:56 PM »
Thanks for all the help,

I know that atomic hydrogen is very reactive but I am trying to find a material that can be used as a container for this atomic hydrogen. I am thinking of a container made out of either a type of glass or a type of plastic. Does anyone have any suggestions or ideas for this? Thanks

Offline ARGOS++

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Re: Atomic Hydrogen via Tungsten
« Reply #9 on: March 02, 2008, 11:41:02 AM »

Dear Ifuller;

Any material that’s good for vacuum will do it, expect some plastics, because the UV-radiation.
That’s because you are not able to “collect”/store/concentrate “Atomic Hydrogen“ at all.
(Remember its very high “Re-combination Rate”!)

Quintessence:
The maximum Concentration of  “Atomic Hydrogen” will lay be quite a small partial pressure of H2.


Good Luck!
                    ARGOS++


Offline ifuller

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Re: Atomic Hydrogen via Tungsten
« Reply #10 on: March 02, 2008, 08:57:04 PM »
Argos,
Thanks for the insight. I understand what you are saying about the high recombination rate. Pretty much I was looking for something that wouldn't react readily with any Atomic Hydrogen created. If anyone else has any other insights or ideas please let me know

Thanks again

Offline ARGOS++

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Re: Atomic Hydrogen via Tungsten
« Reply #11 on: March 03, 2008, 08:28:55 PM »

Dear Ifuller;

You’re welcome!   ─   Soon again.


Good Luck!
                    ARGOS++


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