NightHawkInLight did a good video on that method, but it's a bit dangerous since you have to use a large capacitor bank. Also not cheap since you have to buy a boat load of the super caps and then also a quartz chamber. Out of all the methods besides CVD, which is out of the capabilities of many (most?) of us, probably the electro chemical is easiest, quickest, and produces decent enough graphene for electrical, thermal, and mechanical strengths applications (i.e. composites, cements, etc). I'm not sure, but I think that Rob leans to a combo of the electro-chemical, as well as the heat conversion of hemp to carbon and/or graphite, personally. At least, I got that impression from watching a boat load of his videos awhile back. Something I'm focused on is making cellulose nanocrystals and then converting that into carbon and graphite. I think the size and the inherent crystalline structure may provide a benefit. I'm not sure, but I think that is what is in the hemp that gives it such good properties, though it is also chemically exfoliated while heating (via potassium hydroxide).

@@justinw1765 I was thinking that Rob might have watched a few CHEECH and CHONG movies myself. Maybe he"s got one of those quartz pipes to flash off a little carbon press. I see much cleanup potential in Flash Joule processing, no fire, no chemicals. We can dig up our land fills and make them non toxic profitably.That's a win, win.

mine too mate

@@ThinkingandTinkering :)

this is all about top down methods mate I will cover that in bottom up - cheers

that's a bottom up method mate - so far we are covering top down approaches

I think nanotubes would suit the endgame. I also think an interdigitated compartment wasn't considered for the flash method. I'm guessing the monoatomic layer between carbon electrodes is key. This is cutting edge stuff you are working on and you have lead.

Oh dear.. You have put yourself on the fast track to getting banned..

@@edkoetsier339 out of curiosity: why?

@@edkoetsier339 I seem to remember rob saying to someone to download his stuff but it would be good to have that clarified I have been meaning to suggest that collections of his videos be available on dvd or similar be available on his shop

@@CLDPLM It is illegal to download youtube videos in basically all Western countries, and India.

And if you watch a video on YT, Rob gets paid. If you download, Rob doesn't get paid, so you are stealing from him. And, it HIS intellectual property, not for you to do anything with it. Now you know and KZfaq does too.

"Hematene"? Do you mean the carbon and/or graphitic converted hemp fibers? I would like to see Rob experiment with making cellulose nanocrystals, converting that into a graphite and testing it.

I'm going to channel Rob for a moment: "Go for it mate, see if it works".

There are a couple ways. Really, really, really good microscope. You can also test the electrical conductivity of the material. If you know the base line for the regular graphite source you're using, and then you get a significant increase over that in the possible graphene, or more likely, a more graphenic graphite in the electical conductivity, then you know you're doing something right.

I did mention them - but it was a gloss over for sure but then covering graphene in 7 mins or so I bound to leave a lot out

Makes me wonder a bit about the galvanic corrosion reaction between carbon and Al, and if that could figure in some?

yes - I will be looking at those in the bottom up video this is all about top down

@@ThinkingandTinkering oh OK, thank you for listening!

He does an entire video devoted to such a machine.

a wet spice grinder mate - I came across them when I was in Sri Lanka

It's a little more complex, but there is something to the general notion. After all, the hemp fibers when converted to carbon and/or graphite via heat and/or pressurization shows very high electrical conductivity and more over, because of its innate structure and that it also gets chemically exfoliated by potassium hydroxide during the process, the surface area is immense (helps to increase potential loading of ions), then yes, in a very general sense, there is something to that. What might be interesting in particular, is an instant, high heating and quick cooling of highly oriented, ultra high molecular weight polyethylene--the stuff they use to make ridiculously high tensile strength cord, rope, fibers, etc (A bike company is now using it in place of steel spokes for wheels). (Some trade names include Dyneema and Spectra, but there is plenty of Chinese brand versions). Why, the highly crystalline nature and in a continuous, connected structure, might provide an ideal pathway for electrons, making it very highly, highly conductive? Actually, that would be a good material to try in the flash-electro-heat version. The problem with this material is that it melts at a pretty low temp. Once it starts to get to that near melting temp, it also starts to lose it's high crystallinity which is what gives it its high tensile strength and high thermal conducitivity (Dynamic fabrics are as thermally conductive as some metals). You would have to super heat and cool it very quickly (which the flash method does) and in a completely inert atmosphere. All these methods of converting matter to carbon and graphite require an inert atmosphere (very low to no oxygen) btw. Otherwise, the materials burn up. (As far as I know, there are no thin, flat sheets of highly oriented UHMWPE made, though you can get sheets of regular UHMWPE).

Sounds interesting. How would one go about finding this out, and won't it vary some depending on size, shape, etc? And wouldn't the ultra sonic do, indirectly, what you're proposing would do more directly? Benefit might be less power/energy used, and/or more controlled shearing?

@@justinw1765 to be honest I’m not sure which is why I asked but it seems reasonable to me to assume it would have some benefit in efficiency

That glycerene one

See Nighthawkinlight's video. Dangerous, and somewhat expensive method.

this is about top down methods mate - I will be covering flash graphene - which is a bottom up method later

no you need the urea - I think it is a members video now - but I need to check that to be honest

@@ThinkingandTinkering I thought it was, I may just not be looking in the right place, or otherwise not spotting it. Finally found an appropriate stirrer for my ball mill so I was going to give it a shot for a cellular concrete experiment I'm about to embark on.

@@ryanjamesloyd6733 Any luck with that?