Graphene oxide membranes with high permeability and selectivity for dehumidification of air

被引：55

作者：

Shin, Yongsoon ^{[1
]}

Liu, Wei ^{[2
]}

Schwenzer, Birgit ^{[1
]}

Manandhar, Sandeep ^{[3
,4
]}

Chase-Woods, Dylan ^{[2
,5
]}

Engelhard, Mark H. ^{[3
]}

Devanathan, Ram ^{[2
]}

Fifield, Leonard S. ^{[2
]}

Bennett, Wendy D. ^{[2
]}

Ginovska, Bojana ^{[1
]}

Gotthold, David W. ^{[2
]}

机构：

[1] Pacific NW Natl Lab, Fundamental & Computat Sci Directorate, Richland, WA 99352 USA

[2] Pacific NW Natl Lab, Energy & Environm Directorate, Richland, WA 99352 USA

[3] Pacific NW Natl Lab, WR Wiley Environm Mol Sci Lab, Richland, WA 99352 USA

[4] Univ Washington, Dept Mat Sci & Engn, Seattle, WA 98195 USA

[5] Univ Washington, Dept Phys, Seattle, WA 98195 USA

来源：

CARBON | 2016年 / 106卷

关键词：

POLY(BUTYLENE TEREPHTHALATE); BLOCK-COPOLYMERS; GAS SEPARATION; WATER-VAPOR; ENERGY; PERMEATION; BEHAVIOR; SYSTEM; SHEETS;

D O I：

10.1016/j.carbon.2016.05.023

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hierarchically stacked 2D graphene oxide (GO) membranes are a fascinating and promising new class of materials with the potential for radically improved water vapor/gas separation with excellent selectivity and high permeability. This paper details dehumidification results from flowing gas mixtures through free-standing GO membrane samples prepared by a casting method. The first demonstrated use of freestanding GO membranes for water vapor separation reveals outstanding water vapor permeability and H2O/N-2 selectivity. Free-standing GO membranes exhibit extremely high water vapor permeability of 1.82 x 10(5) Barrer and a water vapor permeance of 1.01 x 10(-5) mol/m(2)sPa, while the nitrogen permeability was below the system's detection limit, yielding a selectivity >10(4) in 80% relative humidity (RH) air at 30.8 degrees C. The results show great potential for a range of energy conversion and environmental applications. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：164 / 170

页数：7

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