Separation of Hydrogen and Nitrogen Gases with Porous Graphene Membrane

The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online

Huailiang Du; Jingyuan Li; Jing Zhang; Gang Su; Xiaoyi Li; Yuliang Zhao

2011

Scholarcy highlights

  • We designed a series of porous graphene as the separation membrane of H2/N2. The selectivity and permeability could be controlled by drilling various nanopores with different shapes and sizes
  • The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online
  • We designed a series of porous graphene as the separation membrane of H2/N2
  • In the systems of bigger nanopores, where the pore size is big enough to allow nitrogen molecules to permeate without any restriction, we observed more permeation events of nitrogen than that of hydrogen molecules
  • The reason is that the van der Waals interactions with the graphene membrane make the nitrogen molecules accumulate on the surface of graphene
  • When the pore size further increases, the flow of hydrogen molecules exhibits the linear dependence on the pore area, while there is no obvious correlation between the flow of nitrogen molecules and the pore area

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