Science Advances

Supplementary Materials

This PDF file includes:

  • Section S1. NP formation of tungsten on copper
  • Section S2. Patterning graphene using s-BCP/transfer to PCTE
  • Section S3. Effect of circular cross section of pores in s-BCP
  • Section S4. Graphene coverage on PCTE
  • Section S5. Pore size evaluation
  • Section S6. Full results of parameter study for patterned graphene
  • Section S7. Pore number density of porous and patterned graphenes
  • Section S8. TEM and SAED of porous graphene
  • Section S9. Membrane preparation for gas and liquid flow measurements
  • Section S10. Gas flow permeance measurement
  • Section S11. Liquid flow permeance characterization
  • Section S12. Calculation of flow impedances through graphene on PCTE
  • Section S13. Gold NP filtration
  • Section S14. Polymer film formation
  • Section S15. Polymer film uniformity by AFM
  • Section S16. Gas permeation and separation measurements
  • Section S17. Properties of polymer/graphene membranes
  • Fig. S1. NP formation of W on Cu.
  • Fig. S2. Schematic of the manufacturing process of BCP patterning of graphene.
  • Fig. S3. Effect of circular pore cross section in s-BCP on graphene pore formation.
  • Fig. S4. Graphene coverage on PCTE.
  • Fig. S5. Pore size evaluation using SEM graphs.
  • Fig. S6. Full results of parameter study for patterned graphene.
  • Fig. S7. Pore number density of porous and patterned graphenes.
  • Fig. S8. TEM and SAED of porous graphene.
  • Fig. S9. Membrane preparation for gas and liquid flow measurements.
  • Fig. S10. Gas flow permeance measurement.
  • Fig. S11. Liquid flow permeance measurement.
  • Fig. S12. Extraction of liquid flow permeation from measurement.
  • Fig. S13. Patterned double-layer graphene membrane (30 s) after DI water flow.
  • Fig. S14. Polymer film formation on porous graphene.
  • Fig. S15. Polymer film uniformity characterization by AFM.
  • Table S1. Computed gas flow impedances for graphene and PCTE and the overall permeance based on the combined impedance model.
  • Table S2. Computed liquid flow impedances for graphene and PCTE and the overall flow rate based on the combined impedance model.
  • Table S3. Relative error functions based on the simplified error propagation model.
  • Table S4. Relative error for gas and liquid permeances computed based on the functions in table S3.
  • Table S5. Gas permeation and separation results of polymer/graphene membranes.

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