Nature Communications (Apr 2016)

Ion selectivity of graphene nanopores

  • Ryan C. Rollings,
  • Aaron T. Kuan,
  • Jene A. Golovchenko

DOI
https://doi.org/10.1038/ncomms11408
Journal volume & issue
Vol. 7, no. 1
pp. 1 – 7

Abstract

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Sub-nanometer graphene nanopores are usually required to create graphene-based reverse osmosis membranes. Here, Rollings et al.show that membranes with larger pores are highly ion selective and a hundred times more permeable to potassium ions than to chloride ions, making them useful for electrodialysis.