Graphene oxide – molybdenum disulfide hybrid membranes for hydrogen separation

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

doi:10.1016/j.memsci.2017.12.063

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

Physical Sciences and Engineering

Research output: Contribution to journal › Article › peer-review

38 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 language	English (US)
Pages (from-to)	145-154
Number of pages	10
Journal	Journal of Membrane Science
Volume	550
DOIs	https://doi.org/10.1016/j.memsci.2017.12.063
State	Published - Mar 15 2018

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

Composite membranes
Gas separation
Graphene oxide
Molybdenum disulfide
Vacuum filtration

ASJC Scopus subject areas

Biochemistry
General Materials Science
Physical and Theoretical Chemistry
Filtration and Separation

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10.1016/j.memsci.2017.12.063

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title = "Graphene oxide – molybdenum disulfide hybrid membranes for hydrogen separation",

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.",

keywords = "Composite membranes, Gas separation, Graphene oxide, Molybdenum disulfide, Vacuum filtration",

author = "Mayur Ostwal and Shinde, {Digambar B.} and Xinbo Wang and Ikhlas Gadwal and Zhiping Lai",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

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day = "15",

doi = "10.1016/j.memsci.2017.12.063",

language = "English (US)",

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T1 - Graphene oxide – molybdenum disulfide hybrid membranes for hydrogen separation

AU - Ostwal, Mayur

AU - Shinde, Digambar B.

AU - Wang, Xinbo

AU - Gadwal, Ikhlas

AU - Lai, Zhiping

PY - 2018/3/15

Y1 - 2018/3/15

N2 - 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.

AB - 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.

KW - Composite membranes

KW - Gas separation

KW - Graphene oxide

KW - Molybdenum disulfide

KW - Vacuum filtration

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DO - 10.1016/j.memsci.2017.12.063

M3 - Article

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SN - 0376-7388

VL - 550

SP - 145

EP - 154

JO - Journal of Membrane Science

JF - Journal of Membrane Science

ER -

Graphene oxide – molybdenum disulfide hybrid membranes for hydrogen separation

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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