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Scalable Production Method for Graphene Oxide Water Vapor Separation Membranes

Published online by Cambridge University Press:  28 June 2016

Leonard S. Fifield*
Affiliation:
Pacific Northwest National Laboratory, Richland, WA 99354, U.S.A.
Yongsoon Shin
Affiliation:
Pacific Northwest National Laboratory, Richland, WA 99354, U.S.A.
Wei Liu
Affiliation:
Pacific Northwest National Laboratory, Richland, WA 99354, U.S.A.
David W. Gotthold
Affiliation:
Pacific Northwest National Laboratory, Richland, WA 99354, U.S.A.
*
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Abstract

Membranes for selective water vapor separation were assembled from graphene oxide suspension using techniques compatible with high volume industrial production. The large-diameter graphene oxide flake suspensions were synthesized from graphite materials via relatively efficient chemical oxidation steps with attention paid to maintaining flake size and achieving high graphene oxide concentrations. Graphene oxide membranes produced using scalable casting methods exhibited water vapor flux and water/nitrogen selectivity performance meeting or exceeding that of membranes produced using vacuum-assisted laboratory techniques. (PNNL-SA-117497)

Type
Articles
Copyright
Copyright © Materials Research Society 2016 

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References

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