Thin, High-Flux, Self-Standing, Graphene Oxide Membranes for Efficient Hydrogen Separation from Gas Mixtures

Daniel Bouša, Karel Friess, Kryštof Pilnáček, Ondřej Vopička, Marek Lanč, Kristián Fónod, Martin Pumera, David Sedmidubský, Jan Luxa, Zdeněk Sofer

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The preparation and gas-separation performance of self-standing, high-flux, graphene oxide (GO) membranes is reported. Defect-free, 15–20 μm thick, mechanically stable, unsupported GO membranes exhibited outstanding gas-separation performance towards H2/CO2 that far exceeded the corresponding 2008 Robeson upper bound. Remarkable separation efficiency of GO membranes for H2 and bulky C3 or C4 hydrocarbons was achieved with high flux and good selectivity at the same time. On the contrary, N2 and CH4 molecules, with larger kinetic diameter and simultaneously lower molecular weight, relative to that of CO2, remained far from the corresponding H2/N2 or H2/CH4 upper bounds. Pore size distribution analysis revealed that the most abundant pores in GO material were those with an effective pore diameter of 4 nm; therefore, gas transport is not exclusively governed by size sieving and/or Knudsen diffusion, but in the case of CO2 was supplemented by specific interactions through 1) hydrogen bonding with carboxyl or hydroxyl functional groups and 2) the quadrupole moment. The self-standing GO membranes presented herein demonstrate a promising route towards the large-scale fabrication of high-flux, hydrogen-selective gas membranes intended for the separation of H2/CO2 or H2/alkanes.

Original languageEnglish
Pages (from-to)11416-11422
Number of pages7
JournalChemistry - A European Journal
Volume23
Issue number47
DOIs
Publication statusPublished - 2017 Aug 22

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Graphite
Gas mixtures
Oxides
Graphene
Hydrogen
Fluxes
Membranes
Gases
Alkanes
Hydrocarbons
Hydroxyl Radical
Paraffins
Functional groups
Pore size
Hydrogen bonds
Molecular weight
Fabrication
Defects
Molecules
Kinetics

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Organic Chemistry

Cite this

Bouša, D., Friess, K., Pilnáček, K., Vopička, O., Lanč, M., Fónod, K., ... Sofer, Z. (2017). Thin, High-Flux, Self-Standing, Graphene Oxide Membranes for Efficient Hydrogen Separation from Gas Mixtures. Chemistry - A European Journal, 23(47), 11416-11422. https://doi.org/10.1002/chem.201702233
Bouša, Daniel ; Friess, Karel ; Pilnáček, Kryštof ; Vopička, Ondřej ; Lanč, Marek ; Fónod, Kristián ; Pumera, Martin ; Sedmidubský, David ; Luxa, Jan ; Sofer, Zdeněk. / Thin, High-Flux, Self-Standing, Graphene Oxide Membranes for Efficient Hydrogen Separation from Gas Mixtures. In: Chemistry - A European Journal. 2017 ; Vol. 23, No. 47. pp. 11416-11422.
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abstract = "The preparation and gas-separation performance of self-standing, high-flux, graphene oxide (GO) membranes is reported. Defect-free, 15–20 μm thick, mechanically stable, unsupported GO membranes exhibited outstanding gas-separation performance towards H2/CO2 that far exceeded the corresponding 2008 Robeson upper bound. Remarkable separation efficiency of GO membranes for H2 and bulky C3 or C4 hydrocarbons was achieved with high flux and good selectivity at the same time. On the contrary, N2 and CH4 molecules, with larger kinetic diameter and simultaneously lower molecular weight, relative to that of CO2, remained far from the corresponding H2/N2 or H2/CH4 upper bounds. Pore size distribution analysis revealed that the most abundant pores in GO material were those with an effective pore diameter of 4 nm; therefore, gas transport is not exclusively governed by size sieving and/or Knudsen diffusion, but in the case of CO2 was supplemented by specific interactions through 1) hydrogen bonding with carboxyl or hydroxyl functional groups and 2) the quadrupole moment. The self-standing GO membranes presented herein demonstrate a promising route towards the large-scale fabrication of high-flux, hydrogen-selective gas membranes intended for the separation of H2/CO2 or H2/alkanes.",
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Bouša, D, Friess, K, Pilnáček, K, Vopička, O, Lanč, M, Fónod, K, Pumera, M, Sedmidubský, D, Luxa, J & Sofer, Z 2017, 'Thin, High-Flux, Self-Standing, Graphene Oxide Membranes for Efficient Hydrogen Separation from Gas Mixtures', Chemistry - A European Journal, vol. 23, no. 47, pp. 11416-11422. https://doi.org/10.1002/chem.201702233

Thin, High-Flux, Self-Standing, Graphene Oxide Membranes for Efficient Hydrogen Separation from Gas Mixtures. / Bouša, Daniel; Friess, Karel; Pilnáček, Kryštof; Vopička, Ondřej; Lanč, Marek; Fónod, Kristián; Pumera, Martin; Sedmidubský, David; Luxa, Jan; Sofer, Zdeněk.

In: Chemistry - A European Journal, Vol. 23, No. 47, 22.08.2017, p. 11416-11422.

Research output: Contribution to journalArticle

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T1 - Thin, High-Flux, Self-Standing, Graphene Oxide Membranes for Efficient Hydrogen Separation from Gas Mixtures

AU - Bouša, Daniel

AU - Friess, Karel

AU - Pilnáček, Kryštof

AU - Vopička, Ondřej

AU - Lanč, Marek

AU - Fónod, Kristián

AU - Pumera, Martin

AU - Sedmidubský, David

AU - Luxa, Jan

AU - Sofer, Zdeněk

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N2 - The preparation and gas-separation performance of self-standing, high-flux, graphene oxide (GO) membranes is reported. Defect-free, 15–20 μm thick, mechanically stable, unsupported GO membranes exhibited outstanding gas-separation performance towards H2/CO2 that far exceeded the corresponding 2008 Robeson upper bound. Remarkable separation efficiency of GO membranes for H2 and bulky C3 or C4 hydrocarbons was achieved with high flux and good selectivity at the same time. On the contrary, N2 and CH4 molecules, with larger kinetic diameter and simultaneously lower molecular weight, relative to that of CO2, remained far from the corresponding H2/N2 or H2/CH4 upper bounds. Pore size distribution analysis revealed that the most abundant pores in GO material were those with an effective pore diameter of 4 nm; therefore, gas transport is not exclusively governed by size sieving and/or Knudsen diffusion, but in the case of CO2 was supplemented by specific interactions through 1) hydrogen bonding with carboxyl or hydroxyl functional groups and 2) the quadrupole moment. The self-standing GO membranes presented herein demonstrate a promising route towards the large-scale fabrication of high-flux, hydrogen-selective gas membranes intended for the separation of H2/CO2 or H2/alkanes.

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