Graphene oxide – molybdenum disulfide hybrid membranes for hydrogen separation

Mayur Ostwal, Digambar B. Shinde, Xinbo Wang, Ikhlas Gadwal, Zhiping Lai*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

36 Scopus citations

Abstract

Graphene oxide – molybdenum disulfide hybrid membranes were prepared using vacuum filtration technique. The thickness and the MoS2 content in the membranes were varied and their H2 permeance and H2/CO2 selectivity are reported. A 60 nm hybrid membrane containing ~ 75% by weight of MoS2 exhibited the highest H2 permeance of 804 × 10−9 mol/m2 s Pa with corresponding H2/CO2 selectivity of 26.7; while a 150 nm hybrid membrane with ~ 29% MoS2 showed the highest H2/CO2 selectivity of 44.2 with corresponding H2 permeance of 287 × 10−9 mol/m2 s Pa. The hybrid membranes exhibited much higher H2 permeance compared to graphene oxide membranes and higher selectivity compared to MoS2 membranes, which fully demonstrated the synergistic effect of both nanomaterials. The membranes also displayed excellent operational long-term stability.

Original languageEnglish (US)
Pages (from-to)145-154
Number of pages10
JournalJournal of Membrane Science
Volume550
DOIs
StatePublished - Mar 15 2018

Bibliographical note

Funding Information:
This work was supported by KAUST CCF grant FCC/1/1972-22-01 .

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

  • Composite membranes
  • Gas separation
  • Graphene oxide
  • Molybdenum disulfide
  • Vacuum filtration

ASJC Scopus subject areas

  • General Materials Science
  • Biochemistry
  • Physical and Theoretical Chemistry
  • Filtration and Separation

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