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Molecular dynamics simulations for separation of H2/N2 by porous graphene

  • DU Huai-Liang ,
  • LI Xiao-Yi
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  • College of Materials Science and Opto-electronics Technology, Graduate University, Chinese Academy of Sciences, Beijing 100049, China

Received date: 2011-03-10

  Revised date: 2011-04-19

  Online published: 2012-05-15

Supported by

Supported by the National Natural Science Foundation of China(21144001), and the Knowledge Innovation Program of Chinese Academy of Sciences

Abstract

We designed a series of porous graphene by drilling different numbers of carbon atom. Molecular dynamics simulations indicate that hydrogen and nitrogen could be separated effectively by porous graphene. The selectivity of hydrogen and nitrogen achieves 100% when the pore size is 0.3725 nm with ten atoms dug. Porous graphene is expected to have potential applications in gas separation and purification.

Cite this article

DU Huai-Liang , LI Xiao-Yi . Molecular dynamics simulations for separation of H2/N2 by porous graphene[J]. Journal of University of Chinese Academy of Sciences, 2012 , (3) : 312 -315 . DOI: 10.7523/j.issn.2095-6134.2012.3.005

References

[1] Novoselov K S,Geim A K,Morozov S V, et al. Electric field effect in atomically thin carbon films[J]. Science, 2004, 306(5696): 666-669.
[2] Geim A K, Novoselov K S. The rise of graphene[J]. Nature Materials, 2007, 6(3): 183-191.
[3] Novoselov K S,Geim A K,Morozov S V, et al. Two-dimensional gas of massless dirac fermions in graphene[J]. Nature, 2005, 438(7065): 197-200.
[4] Geim A K. Graphene: Status and prospects[J]. Science, 2009, 324(5934): 1530-1534.
[5] Freemantle M. Membranes for gas separation[J]. Chem Eng News, 2005, 83(40): 49-57.
[6] Bunch J S,Verbridge S S,Alden J S, et al. Impermeable atomic membranes from graphene sheets[J]. Nano Letters, 2008, 8(8): 2458-2462.
[7] Fischbein M D, Drndic M. Electron beam nanosculpting of suspended graphene sheets[J]. Applied Physics Letters, 2008, 93(11): 113107-113110.
[8] Kuhn P,Forget A,Su D S, et al. From microporous regular frameworks to mesoporous materials with ultrahigh surface area: Dynamic reorganization of porous polymer networks[J]. Journal of the American Chemical Society, 2008, 130(40): 13333-13337.
[9] Jiang D E,Cooper V R, Dai S. Porous graphene as the ultimate membrane for gas separation[J]. Nano Letters, 2009, 9(12): 4019-4024.
[10] Phillips J C,Braun R,Wang W, et al. Scalable molecular dynamics with namd[J]. Journal of Computational Chemistry, 2005, 26(16): 1781-1802.
[11] MacKerell A D,Bashford D,Bellott M, et al. All-atom empirical potential for molecular modeling and dynamics studies of proteins[J]. Journal of Physical Chemistry B, 1998, 102(18): 3586-3616.
[12] Humphrey W,Dalke A, Schulten K. Vmd: Visual molecular dynamics[J]. Journal of Molecular Graphics, 1996, 14(1): 33-38.
[13] Mpourmpakis G,Tylianakis E, Froudakis G. Hydrogen storage in carbon nanotubes: A multi-scale theoretical study[J]. Journal of Nanoscience and Nanotechnology, 2006, 6(1): 87-90.
[14] Verlet L. Computer experiments on classical fluids I. Thermodynamical properties of lennard-jones molecules[J]. Physical Review, 1967, 159(1): 98-103.
[15] Wang B, Kral P. Optimal atomistic modifications of material surfaces: Design of selective nesting sites for biomolecules[J]. Small, 2007, 3(4): 580-584.
[16] Sint K,Wang B, Kral P. Selective ion passage through functionalized graphene nanopores[J]. Journal of the American Chemical Society, 2008, 130(49): 16448-16449.
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