Dear All,
I am going to compare the ion/water transport through a single layer graphene with that through a carbon nanotube. I just wondering what the exact thickness of a single layer graphene is?
Thanks in advance
MajiD
Dear Sadegh and Dr. Hu,
Thank you very much for your answers...
I agree with Dr. Hu. I just found a paper (http://pubs.acs.org/doi/abs/10.1021/jz100240r) which considered a monolayer graphene with thickness of almost zero.
Thanks again.
Have a good day
MajiD
Theoretically, the thickness of single layer graphene is 0.345 nm (one atom thickness).
Dear Sadegh and Dr. Hu,
Thank you very much for your answers...
I agree with Dr. Hu. I just found a paper (http://pubs.acs.org/doi/abs/10.1021/jz100240r) which considered a monolayer graphene with thickness of almost zero.
Thanks again.
Have a good day
MajiD
You can consider the thickness of graphene as same as in the separation of graphite layers: 0.335 nm
Where does that article mention that thickness is 'almost zero'? I could find:
"A graphene monolayer(16) can be considered as the thinnest membrane reported so far, as its thickness is only one carbon atom in diameter."
Dear Fernando,
Oops..
I made a mistake. Actually, I was misunderstood the Fig. 2 that shows flux versus membrane thickness NOT pore's thickness.
Actually, I'd like to compare ion transport through Multilayer graphene and compared it with ion transport in CNT (as same length of multilayer graphene). E,g., a multilayer membrane with 1nm versus a CNT with 1nm length.
Do I care about the thickness of the layers here?
Thanks in advance
In single layer graphene you dont care about the thickness (obviously, because is single layer graphene).
However, when you add more layers, then you have to care about the thickness, since permeation will be a series process (one layer after the other).
the thickness of carbon is not 0.335 nm, so why the thickness of graphene is 0.335 nm?
If I am not mistaken, here is a graphene sheet with 35 micrometer thickness. What I learn from the answers is graphene sheet with a single layer could have 0.345 nm (one atom thickness)...
https://nanografi.com/graphene/graphene-sheet-size-29-cm-x-29-cm-thickness-35-m-highly-conductive/
practically, could we say that any number above 0.345 nm indicates a combination of graphene layers ?
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