Graphene Supercapacitors

[Michael John Nunnerley]

Apparently, graphene can be mass produced.

Improved Synthesis of Graphene Oxide
Answer: Can graphene be mass produced?
The Future for Graphene
Graphene Future Applications
Commercial Production of Graphene Cool Experiment
Victor Petrik Conducts Lecture on Graphene and Demonstrates Production of Graphene
Victor Petrik Demonstrates Production of Graphene
Victor Petrik about Grafene
Graphite Oxide + Water + Laser = Supercapacitor

Victor Petrik Graphene Patent #7,842,271

Patent US7842271 - Mass production of carbon nanostructures - Google Patents

Patent US20110171109 - Mass Production of Carbon Nanostructures - Google Patents

See: Graphenes Production Using the Method of Cold Graphite Destruction

Cheers

Anything to do with that Russian clown is total rubbish. so I would remove those links if I was you.

Graphene is not so easy to produce at the moment on a large scale, the problem is purity and size of sheets, but watch this space, it is just around the corner.

Mike

[Michael John Nunnerley]

Hi guys.Graphene and its properties look pretty impressive.Check this video where they use magnesium powder and dry ice to produce graphene

NIU scientists produce graphene in a simple, green way. - YouTube

Yes that is a way of making a pure graphene from carbon dioxide through heating it to a very high temperature.

Mike

[Joit]

Yes, i did read the comments about this Victor Petrik too, another Illusionist.
Not even sure if the Pictures at the end from the Video belongs to his Material.
He seems split it complete, if he did, or the foam was only a trick. I remember something similar where such foam was produced.
I like the one more " how to make graphene oxide above also few from the others, and it seem like you have to seperate the coal from the carbon, what then left there are the layers. Oxidation works in 2 Ways, fast with heat or slowly with corrosion. Actually there is only something need, what dissolve the coal, and then you need to seperate it.

Man i read again a few things today, feels like a crash course in chemistry again.
I did look again today at ebuy for graphene oxid as i did before few days, but all offers did vanish..., only one left with something about 68 bucks for some Drops.

[wantomake]

Still interesting

Greetings to All,
So Mike , Joit, and others,

There is no way to produce graphene without a full lab or degree in chemistry ? Not being negative just factual and use wisdom.
Yes the russian scientist vids looked too easy. If that were true we'd all have graphene now.
I did purchase 3 grams of graphite powder at lowes. Then per someone giving a "backyard hobbyist" way to produce some graphene, I'll make some to use. But you are correct Joit, it is pricey on line.

But still fun to try,
wantomake

[artoj]

Graphene Antenna

Hi all, love the stuff about Graphene, just found an interesting article.
Samsung backs graphene micro-antenna project :: Radio-Electronics.com

[kurtilator]

possible source of electrolyte

I saw mentioned earlier that phosphoric acid might make a good electrolyte. Star-San, a brand of sanitizer, says it has 50% phosphoric acid in its ingredient list. 35% is some kind of benzoic acid, and the other 15% is listed as inert ingredients but I have no idea what they might be. I suppose if one could find a MSDA on the stuff, that might say something more.

I've been, on and off, working on building a cheap supercapacitor using powdered activated charcoal as one of the electrodes, but I've been stuck at finding a nice separator.

I hadn't considered phosphoric acid as electrolyte, sticking more to the conventional salts, but now I will try it.

[caru]

I've been, on and off, working on building a cheap supercapacitor using powdered activated charcoal as one of the electrodes, but I've been stuck at finding a nice separator.

Hello all!
kurtilator, tracing paper is a nice and cheap separator for activated carbon supercaps, it is durable because it doesn't have cellulose, which dissolves in salt water, so it lasts years.

[IndianaBoys]

Be sure to watch the advancements Robert Murray-Smith is bringing forward.

Very soon we will be producing graphene supercapacitors, solar cells and sperating hydrogen from water at home without a lot of expense.

Some say impossible, well, have a look at what is being done right now and decide for youselves:

Robert Murray-Smith - YouTube

He is an open source inventor opening up some incredible possibilities in these areas.

IndianaBoys

[Berg]

Clarification

There is allready a Posting from this.

That thread is not necessarily for graphene supercapacitors, but this one is.

Cheers,

Berg
________________

Recommended Reading: The Quantum Key

[Joit]

That thread is not necessarily for graphene supercapacitors, but this one is.

Cheers,

Berg
________________

Recommended Reading: The Quantum Key

I dont see a Clarification here. The Informations from here had fit very well into the other thread.
Dont tell me you got a Problem with it, when you cant start a new own Thread about it. But you could explain, what the Purpose from this 'Clarification' here is.

[Berg]

The Other Thread

But you could explain, what the Purpose from this 'Clarification' here is.

My explanation is while I do like the video in that thread, the title of the thread, I thought, is not particularly specific to Graphene Supercapacitors as this thread is, which is why I created this thread in the first place. If I had found the other thread first, I would have been happy to post there instead of creating this thread. That was the only point that I was trying to make, but if anyone is interested in visiting the other thread, I encourage him or her to go there. Certainly, there are other types of supercapacitors which are not of a Graphene type, for example, the TS12S-R, and one would be more justified in posting to the other thread than to this one about it, except in this particular case, as that supercapacitor contains no Graphene.

Cheers,

Berg

[qbjorn]

I see a business venture here with selling plastic CD-labels pre-coated with graphite oxide for use in LightScribe burners.

Does anyone know such a source?
I'd gladly buy a 10-pack at $2 a piece!

[Michael John Nunnerley]

Be sure to watch the advancements Robert Murray-Smith is bringing forward.

Very soon we will be producing graphene supercapacitors, solar cells and sperating hydrogen from water at home without a lot of expense.

Some say impossible, well, have a look at what is being done right now and decide for youselves:

Robert Murray-Smith - YouTube

He is an open source inventor opening up some incredible possibilities in these areas.

IndianaBoys

Robert is a chemist who does work for a company, I really don't know how he gets away with doing this in public, but good for him, as long as he does not loose his job by doing it, that would worry me.

Mike

[wantomake]

My test so far

I see a business venture here with selling plastic CD-labels pre-coated with graphite oxide for use in LightScribe burners.

Does anyone know such a source?
I'd gladly buy a 10-pack at $2 a piece!

Yes qbjorn,
I would also purchase some too.

What I've done so far is buy a tube of the graphite lubricant from Home Depot and mixed entire tube with wood glue and did cover a cd disk with the solution. Then left it to dry at room temps until hardened. But it did dry wavy and not flat as I hoped so I could place it in a LightScribe burner.

So the type of solution to mix graphite in to this and allow it to dry flat so one could place it in LightScribe would be great.

If anyone could help with this simple experimentation, which is why Berg started this thread, (thanks Berg) I would be thankful.

Thanks and happy experimenting,
wantomake

[IndianaBoys]

You can make your own graphene oxide. Robert Murray-Smith's method:

How to make Graphine at home by the bucketload - part 2 - Simplified method
How to make Graphine at home by the bucketload - part 2 - Simplified method - YouTube

Published on Feb 1, 2013

So, i was getting a lot of people telling me that the method I was using was pretty complicated and I agree. So, I have spent quite a bit of time looking for a much simpler way to do this and I think I have found it. Basically the method is to put

320ml Sulphuric Acid
80ml Phosphoric Acid
3.2g graphite Flake
18g Potassium Permanganate

into a jar and leave it sitting around for 3-4 days. At the end of that time add 100ml of Hydrogen Peroxide and you are done. What you should have is a bright yellow precipitate of graphene oxide. Then you need to wash this in 1 moar HCl and water until the pH is about 4 or 5. I don't think you could get simpler than this for a wet chemical method that seems to produce nearly 100% graphene oxide - well, I know I don't lead that interesting a life but I am pretty excited by this.


Application of graphite oxide solution to PET substrate
Application of graphite oxide solution to PET substrate - YouTube

Published on Mar 7, 2013

Here I have applied a graphite oxide (GO) solution that I made from dispersing 100mg of GO into 27ml of distilled water using a sonic jewelry cleaner. I probably used around half of the solution to cover the CD shaped substrate. Once the solution is applied to the substrate, allow it to fully dry on top of a level surface so that it dries with an even amount of GO across the entire surface. Once it is dry it will be ready to be adhered to a CD and reduced to graphene using a Lightscribe device.


Eric Goeken 19 hours ago

I bought my initial graphite oxide from ebay. Search for graphene oxide and you will see it. the two terms are used interchangeably. I am actually in the process of making my own batch of graphite oxide right now. I'm using the method detailed in robert murray-smith's video on how to make graphene by the bucket load part 2. Its more economical to make it yourself if you're going to use a lot. If not, then you can just buy like 100mg for $20 on ebay.


IndianaBoys