Selective molecular transport through intrinsic defects in a single layer of CVD graphene.
ACS Nano
; 6(11): 10130-8, 2012 Nov 27.
Article
in En
| MEDLINE
| ID: mdl-23030691
ABSTRACT
We report graphene composite membranes with nominal areas more than 25 mm(2) fabricated by transfer of a single layer of CVD graphene onto a porous polycarbonate substrate. A combination of pressure-driven and diffusive transport measurements provides evidence of size-selective transport of molecules through the membrane, which is attributed to the low-frequency occurrence of intrinsic 1-15 nm diameter pores in the CVD graphene. Our results present the first step toward the realization of practical membranes that use graphene as the selective material.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Porosity
/
Graphite
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Membranes, Artificial
Language:
En
Journal:
ACS Nano
Year:
2012
Document type:
Article
Affiliation country: