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Author Topic: Amazing graphene super capacitor!  (Read 33987 times)

Offline Magluvin

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Re: Amazing graphene super capacitor!
« Reply #15 on: February 17, 2013, 06:52:37 PM »
dl.dropbox.com/u/33170160/Science-2012-El-Kady-1326-30.pdf

http://www.nature.com/srep/2013/130125/srep01134/full/srep01134.html#supplementary-information

Seems to be bad links. Pdf doesnt load and the other link brings us right back to this thread. :o Very strange on that second one. How does that happen?

Mags

Free Energy | searching for free energy and discussing free energy

Re: Amazing graphene super capacitor!
« Reply #15 on: February 17, 2013, 06:52:37 PM »

Offline rensseak

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Re: Amazing graphene super capacitor!
« Reply #16 on: February 17, 2013, 07:02:04 PM »
He Mags,

I did check it but for me it works fine.

Offline Pirate88179

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Re: Amazing graphene super capacitor!
« Reply #17 on: February 17, 2013, 08:18:55 PM »
He Mags,

I did check it but for me it works fine.

Both links work fine over here too.

Bill

Free Energy | searching for free energy and discussing free energy

Re: Amazing graphene super capacitor!
« Reply #17 on: February 17, 2013, 08:18:55 PM »
Sponsored links:




Offline Magluvin

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Re: Amazing graphene super capacitor!
« Reply #18 on: February 17, 2013, 08:20:39 PM »
I just tried them in the quote box in my post and the second one worked. ;]

The first one still hung up. Maybe its my firewall/antivirus.

Thanks

Mags

Offline LukeLordOfLight

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Re: Amazing graphene super capacitor!
« Reply #19 on: February 17, 2013, 10:47:20 PM »
working for me too!
Thanks!

Free Energy | searching for free energy and discussing free energy

Re: Amazing graphene super capacitor!
« Reply #19 on: February 17, 2013, 10:47:20 PM »
Sponsored links:




Offline Pirate88179

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Re: Amazing graphene super capacitor!
« Reply #20 on: February 19, 2013, 02:39:59 AM »
What was that Scotch Tape method of producing graphite oxide?  They said something like it only produces small amounts.......?  Could this method be scaled up or improved upon?  I have no idea how it might work to produce even a very small amount.

Bill

Possible source for graphene oxide:

&shopp_catfilters[Graphene%20Powder%20or%20Graphene%20Oxide]=Graphene+Oxide&gclid=CO-A6sqfwbUCFQ6ynQodpDAAnw]http://www.angstronmaterials.com/shop/category/all-graphene-products/?shopp_catfilters[Graphene%20Powder%20or%20Graphene%20Oxide]&shopp_catfilters[Graphene%20Powder%20or%20Graphene%20Oxide]=Graphene+Oxide&gclid=CO-A6sqfwbUCFQ6ynQodpDAAnw

Offline Pirate88179

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Re: Amazing graphene super capacitor!
« Reply #21 on: February 20, 2013, 02:43:23 AM »
http://www.angstronmaterials.com/shop/n002-ps/

Wow! $775.00 (US) for 5 grams of graphene oxide solution.  I need to learn how to make this stuff.

Bill

Free Energy | searching for free energy and discussing free energy

Re: Amazing graphene super capacitor!
« Reply #21 on: February 20, 2013, 02:43:23 AM »
Sponsored links:




Offline TechStuf

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Re: Amazing graphene super capacitor!
« Reply #22 on: February 20, 2013, 06:25:06 AM »

http://en.wikipedia.org/wiki/Graphene

http://www.youtube.com/watch?v=_oEFwyoWKXo

One could give the 'drawing' method or the thermal reduction method via lightscribe DVD drive a go...


TS


P.S. It may be noted that Graphene is also one of the strongest materials known at this time....

http://www.youtube.com/watch?v=we3kWMkSGtg

So, one can imagine the kinds of uses for such a strong (in more ways than one) 'battery' as this.  The car of the future may use it's body as the battery, and simply pulling forward in order to touch a couple contacts for a couple minutes  could give one a few hundred miles of range.  Aircraft skins obtain appreciable positive charges in flight.  Imagine a craft whose skin charges itself simply by the act of flying through the atmosphere, or by targeted laser conduit channel.

Offline Qwert

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Re: Amazing graphene super capacitor!
« Reply #23 on: February 20, 2013, 09:29:28 AM »

Free Energy | searching for free energy and discussing free energy

Re: Amazing graphene super capacitor!
« Reply #23 on: February 20, 2013, 09:29:28 AM »
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Offline gravityblock

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Re: Amazing graphene super capacitor!
« Reply #24 on: February 20, 2013, 06:47:42 PM »
Dvd lasers use a wavelength of 650 nm (red light), which is equivalent to 1.9 eV (electron volts).  This is extremely important, because it is 0.2 eV above what is required to break the bonds of the fullerenes cage when atomic hydrogen is externally bonded to the cage.  The energy needed to break one bond is larger than the energy to break two adjacent bonds.  The energy barrier to propagate the fracture decreases at successive steps. As a matter of fact, it may be reasonable to assume that the energy released following the initial step may activate the zipperlike cleavage at the crease without further energy investment. Once cleavage is initiated, the unzipping process transforms the stressed crease into two overlapping graphene edges in an exothermic reaction.

Graphite oxide is a compound of carbon, oxygen, and hydrogen.  Molecular hydrogen (H2) does not dissociate on planar graphene, but does so with an energy gain on fullerenes, with the dissociated hydrogen pair preferentially binding on top of adjacent carbon atoms.  The dissociated hydrogen pair binding externally to the cage of the fullerenes helps to release stress.  Following an initial energy investment of 1.7 eV (red light from a DVD laser), the bonds of the cage break abruptly, leaving two overlapping graphene edges. There is a net energy gain of ~2 eV associated with the bond breaking, caused by releasing the accumulated stress.  The net energy gain of ~2 eV plus the initial energy investment of 1.7 eV is 3.7 eV, which is 0.2 eV above the white led (3.5 eV) being lit in the video found in the first post of this thread.  I posted this information in another thread 2 years ago which didn't gain any interest at that time (which is the norm).

Reference Publication: "Hydrogen-induced disintegration of fullerenes and nanotubes".

Gravock

Offline gravityblock

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Re: Amazing graphene super capacitor!
« Reply #25 on: February 20, 2013, 07:06:06 PM »
IMO, it's much cheaper and easier to isolate the fullerenes which can then be used to produce graphene.  Below is a patent on isolating these fullerenes.  It mentions that fullerenes in soot (contained in a quartz vessel) can be evaporated by microwaves in seconds. The fullerenes gas (brown stuff) then condenses on the walls of the vessel.  Next, the fullerenes cages can be used to dissociate molecular hydrogen into atomic hydrogen which then binds externally to the cages to help release the stress in order for a red dvd laser to easily break the bonds of the cages to produce graphene.

United States Patent 5458742: http://www.freepatentsonline.com/5458742.html

Gravock

Free Energy | searching for free energy and discussing free energy

Re: Amazing graphene super capacitor!
« Reply #25 on: February 20, 2013, 07:06:06 PM »
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Offline gravityblock

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Re: Amazing graphene super capacitor!
« Reply #26 on: February 20, 2013, 07:22:59 PM »
A small particle of carboxy fullerene is placed on top of heat sensitive explosive. Irradiation with a 785 nm laser (1W) results in an instantaneous explosion.  In the absence of carboxy fullerenes, the laser with output power of (5W), failed to ignite the explosives.  ( http://www.youtube.com/watch?v=rJvh0yA69ow )

Gravock

Offline gravityblock

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Re: Amazing graphene super capacitor!
« Reply #27 on: February 20, 2013, 07:58:33 PM »
Here is presented the Scotch Tape method
http://physicsworld.com/cws/article/multimedia/2011/sep/29/how-to-make-graphene

The video says the scotch tape method isn't practical, so why do you think we should pursue this method?  If they overlooked something which can make this method practical for the application currently being discussed then I'm all ears.

Gravock

Offline gravityblock

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Re: Amazing graphene super capacitor!
« Reply #28 on: February 21, 2013, 11:03:25 AM »
Here's how to make carbon fullerenes with 100 percent efficiency which allows us to reverse this method by disintegrating the fullerenes with molecular hydrogen and a DVD laser as mentioned in one of my previous posts.  This whole process can then be repeated.  Each cycle in the process should yield a net energy gain of 2 eV.  Please note, the platinum isn't consumed in this process and can be salvaged cheaply from catalytic converters, etc.

Gravock

Offline Pirate88179

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Re: Amazing graphene super capacitor!
« Reply #29 on: February 22, 2013, 05:09:23 AM »
The video says the scotch tape method isn't practical, so why do you think we should pursue this method?  If they overlooked something which can make this method practical for the application currently being discussed then I'm all ears.

Gravock

I believe that was in response to my question above about the tape method.  i asked how it worked and thought maybe the efficiency could be scaled up a bit.  In thinking about it, I think perhaps the tape removes from the surface some particles that have been oxidized by the exposure to air.  If this is correct, why could we not grind the graphite into powder form and place it in a vessel and pressurize the vessel with pure oxygen and maybe even agitate the contents a bit?  It would seem to me that this would speed up the oxidation process...perhaps not by enough to make it viable.  The method used in those videos was with acid, which would be problematic for me to do in my small apartment.  Maybe we can come up with something that does indeed work.

Bill

 

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