Increased permeability of oxygen atoms through graphene with ripples

Soft Matter
Guangyu HeYingchun Liu

Abstract

Graphene is an ideal membrane for selective separation because of its unique properties and single-layer structure. Considerable efforts have been made to alter the permeability of graphene. In this study, we investigate the pathways for an oxygen atom to pass through graphene sheets. We also identify the effect of the ripple's curvature in graphene sheets on the energy barrier of permeation through density functional theory calculations. Results show that oxygen atoms can easily pass through the concave side of graphene ripples with a large curvature. The analysis of transition states reveals that the space where an oxygen atom passes through keeps an almost identical structure with similar bond lengths regardless of the curvature. We find that the Cu(111) substrate may draw out the C-C bond lengths of graphene at the Cu(111) surface because of the strong interaction between the graphene edge and copper atoms. Consequently, the energy barrier of the permeation of oxygen atoms through graphene is reduced. These results suggest that the rippling of graphene significantly affects its permeation.

References

Nov 11, 2005·Nature·K S NovoselovA A Firsov
Jan 27, 2007·Science·J Scott BunchPaul L McEuen
Mar 3, 2007·Nature·Jannik C MeyerS Roth
Jun 30, 2007·Science·D A Abanin, L S Levitov
Sep 25, 2007·Nature Materials·A FasolinoM I Katsnelson
Mar 21, 2008·Physical Review Letters·A L Vázquez de PargaR Miranda
Jul 18, 2008·Nano Letters·J Scott BunchPaul L McEuen
Jul 26, 2008·Nature Nanotechnology·Phaedon AvourisVasili Perebeinos
Oct 15, 2008·Physical Review Letters·D MartocciaT Greber
Dec 31, 2008·Physical Review Letters·V B ShenoyY W Zhang
Mar 5, 2009·Physical Review Letters·V GeringerM Morgenstern
Dec 10, 2009·Nano Letters·De-en JiangSheng Dai
Oct 9, 2012·Nature Nanotechnology·Steven P KoenigJ Scott Bunch
Dec 12, 2012·Chemical Communications : Chem Comm·Qingzhi WuRodney S Ruoff
Jun 6, 2013·Physical Chemistry Chemical Physics : PCCP·Antonio PolitanoGennaro Chiarello
Aug 30, 2013·Physical Chemistry Chemical Physics : PCCP·Meng MiaoYingchun Liu
Feb 7, 2014·Journal of the American Chemical Society·Xiuyun ZhangFeng Ding
Aug 16, 2014·Scientific Reports·Shen-Lin ChangMing-Fa Lin
May 20, 2015·Chemical Society Reviews·Gongping LiuNanping Xu

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