Selective molecular transport through intrinsic defects in a single layer of CVD graphene

Sean C. O'Hern, Cameron A. Stewart, Michael S H Boutilier, Juan Carlos Idrobo, Sreekar Bhaviripudi, Sarit K. Das, Jing Kong, Tahar Laoui, Muataz Atieh, Rohit Karnik

Research output: Contribution to journalArticle

197 Citations (Scopus)

Abstract

We report graphene composite membranes with nominal areas more than 25 mm2 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.

Original languageEnglish
Pages (from-to)10130-10138
Number of pages9
JournalACS Nano
Volume6
Issue number11
DOIs
Publication statusPublished - 27 Nov 2012
Externally publishedYes

Fingerprint

Graphite
Graphene
Chemical vapor deposition
graphene
vapor deposition
Defects
polycarbonate
defects
membranes
Membranes
Composite membranes
polycarbonates
Polycarbonates
occurrences
low frequencies
porosity
Molecules
composite materials
Substrates
molecules

Keywords

  • filtration
  • graphene membranes
  • nanofiltration
  • nanofluidics

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

O'Hern, S. C., Stewart, C. A., Boutilier, M. S. H., Idrobo, J. C., Bhaviripudi, S., Das, S. K., ... Karnik, R. (2012). Selective molecular transport through intrinsic defects in a single layer of CVD graphene. ACS Nano, 6(11), 10130-10138. https://doi.org/10.1021/nn303869m

Selective molecular transport through intrinsic defects in a single layer of CVD graphene. / O'Hern, Sean C.; Stewart, Cameron A.; Boutilier, Michael S H; Idrobo, Juan Carlos; Bhaviripudi, Sreekar; Das, Sarit K.; Kong, Jing; Laoui, Tahar; Atieh, Muataz; Karnik, Rohit.

In: ACS Nano, Vol. 6, No. 11, 27.11.2012, p. 10130-10138.

Research output: Contribution to journalArticle

O'Hern, SC, Stewart, CA, Boutilier, MSH, Idrobo, JC, Bhaviripudi, S, Das, SK, Kong, J, Laoui, T, Atieh, M & Karnik, R 2012, 'Selective molecular transport through intrinsic defects in a single layer of CVD graphene', ACS Nano, vol. 6, no. 11, pp. 10130-10138. https://doi.org/10.1021/nn303869m
O'Hern SC, Stewart CA, Boutilier MSH, Idrobo JC, Bhaviripudi S, Das SK et al. Selective molecular transport through intrinsic defects in a single layer of CVD graphene. ACS Nano. 2012 Nov 27;6(11):10130-10138. https://doi.org/10.1021/nn303869m
O'Hern, Sean C. ; Stewart, Cameron A. ; Boutilier, Michael S H ; Idrobo, Juan Carlos ; Bhaviripudi, Sreekar ; Das, Sarit K. ; Kong, Jing ; Laoui, Tahar ; Atieh, Muataz ; Karnik, Rohit. / Selective molecular transport through intrinsic defects in a single layer of CVD graphene. In: ACS Nano. 2012 ; Vol. 6, No. 11. pp. 10130-10138.
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