Usually we synthesize graphene from GO by reduction, where the synthesis of GO is another step. Is there any method available to synthesize graphene from graphite in one step except the sticky tape method?
I don't know what exactly you mean by "one step", but liquid phase exfoliation takes it directly from graphene to graphite without going through chemical intermediates. Look at the work of J. Coleman and co-workers, for example:
Nature Nanotechnology 3, 563 - 568 (2008)
Adv. Funct. Mater., 19: 3680–3695
Science 331, 568 (2011)
Since you mention also adhesive tape, I believe you might want to prepare single and clean graphenes also by exfoliation. You can check then our paper for such mechanical exfoliation method: http://pubs.acs.org/doi/abs/10.1021/nl2037358 please e-mail me in case of any questions.
Simulations solves any functional material problem. So, e-mail me if you wish.
Hi, as far as I know, the only methods, besides chemical ones that employed GO, is chemical vapor deposition and epitaxial method. However in both cases you need some special equipment. I'm not aware of any other easier and accessible methods.
The question is not only about engineering. Theory through simulation is behaving as an array of solutions.
An article decisive to the researcher? Santosh Kumar Yadav answer ...tks.
Idea is a simulation one, Santosh. So, decisive to forward the researcher demands.
Just use liquid phase exfoliation.. The other methods like CVD and epitaxial growth of graphene are more complicated !
Solvent exfoliation is a good option, but the yield is low especially with large diameter flakes also it involves large amounts of solvents..
There are some other 'non-oxidizing' methods like exfoliation of graphite in super critical fluids, but the most interesting option is simple ball milling of graphite. see this PNAS paper: 10.1073/pnas.1116897109
I thank you all for your nice suggestions. Really i enjoyed you answers.
Hai Mr. Sridhar, how to calculate the yield? Can you explain to me. My mail id is "[email protected]"
organic salt assisted solvent exfoliation method may be helpful for you.
http://www.sciencedirect.com/science/article/pii/S0009261413004077
Yes sure, you can do it via strong current (more than 100 A) and voltage. If you sandwich graphite between two electrodes under heat and apply high magnitude voltage and current to it, it can destroy the van der waals attraction forces between graphen sheets and transform graphite to single layer graphene.
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