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MIT Discovers Way To Mass-Produce Graphene In Large Sheets (inhabitat.com)
New submitter Paige.Bennett writes: Up till now, graphene has been produced in small batches in labs. But MIT just found a way to mass-produce graphene in large sheets using a process that rolls out five centimeters of graphene each minute. The longest span so far was nearly four hours, which produced about 10 meters of graphene. According to MIT, here's how their conveyor belt system works: "The first spool unfurls a long strip of copper foil, less than one centimeter wide. When it enters the furnace, the foil is fed through first one tube and then another, in a 'split-zone' design. While the foil rolls through the first tube, it heats up to a certain ideal temperature, at which point it is ready to roll through the second tube, where the scientists pump in a specified ratio of methane and hydrogen gas, which are deposited onto the heated foil to produce graphene." The work has been published in the journal Materials and Interfaces.
Impossible. Methane is an evil substance which must be banned from existence, before the capitalist pigs use it to destroy the world.
Now, finally, we can manufacture it in large enough quantities to worry about environmental problems!
"First they came for the slanderers and i said nothing."
From the title/summary it sounded like they had progressed to the point of making "square" sheets. As far as the article/video shows, it's really a copper coated ribbon? Still very impressive!
of the graphene product, I see the machine but the 'product' looks like a computer illustration. (sigh)
We won't have to worry about pencil shortages?
Hans down
So glad we could wait over 10 years for this. Now where's the transparent aluminum I was promised? Hello Computer!
If this place had any actual engineers, the rate of production would have also been quantified in kg/s. And J/kg, too, with their current rig.
Not sure how useful a graphene-copper composite is... Article doesn't describe any steps beyond depositing the graphene onto the copper.
That was the turning point of my life--I went from negative zero to positive zero.
I'm a nanotechnologist. Actually, I founded a graphene chip company that actually has a product and customers (Nanomedical Diagnostics).
There are two companies that already produce graphene roll to roll like this (Samsung and Grolltex). Not surprisingly, there's not much of a market for it. There are far fewer people working on graphene applications than on developing the raw material.
There are a few reasons for this. First, investment in commercialization of graphene applications is not popular (because market research is a necessary skill to pitch a product - not so much with a commodity). Second, devices and applications are just harder to make. Most people in my field don't want to work on the kinds of problems that are common in manufacturing (or if they do, they go work for Intel).
The result of all this is that it's actually very easy for someone like me to grow my own graphene (growth tech and know-how is cheap), and it's very hard for a graphene growth company to demonstrate applicability (meeting real industrial cost or QA targets).
In short, a third source of graphene of this type is not needed.
As if we never thought about "nano" stuff being toxic, which we know graphine is so lets mass produce it and send millions of tons into the ecosphere to make things even more toxic, wait I have an idea! lets go one better and grate Plutonium into mono molecular bits and spread it evenly over the entire planet, surely noting bad could happen!
Sure, but when will we finally have Autonomous AI Crypto Blockchain Graphene? And what good is a sheet of graphene if we don't have 3D Printed Open Source Universal Basic Graphene for all?
Don't disappoint your bird dog. Go to the range.
I am surprised it has taken so long to actually get graphene production up to meaningful levels given the potential uses for the material.
One would think that its potential to drastically increase the output while decreasing the energy requirements for desalinization alone would have have spurred more development.
Not to mention fast charging batteries, insulation, structural components in cars and aircraft, solar cells and tons of other pretty important things.
Would be nice to have super light weight cars.
Does that mean we can all have our violines mass produced?
If this place had any actual engineers, the rate of production would have also been quantified in kg/s. And J/kg, too, with their current rig.
I'm guessing you aren't from the US if you think actual engineers always us SI units. I'll agree that they SHOULD use SI units but the fact of the matter is that in the real world they often do not.
Am I the only one here who expects a sheet to have two dimensions? I see that the process produced 10m of graphene. What is the other dimension? If it doesn't have one, then I'd call it a fiber. If it is 1cm, I'd call it a ribbon. The paywalled scientific article has a picture that looks more like a small piece of Scotch tape.
-- Each tock of the Planck clock is a new world and here we are still life. --
Now we can get on with creating the Space Elevator of Science speculation.
Will it work? Lets just build one and find out.
Just crystalize it (using those crystals bought from astro.tv), and you have crystal meth!
*strokes gun and man-bun*
'Nuff said.