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Title: Scalable Production Method for Graphene Oxide Water Vapor Separation Membranes

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)
Authors:
; ; ;
Publication Date:
OSTI Identifier:
1339827
Report Number(s):
PNNL-SA-117497
Journal ID: ISSN 2059-8521; 48749; 48710
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: MRS Advances; Journal Volume: 1; Journal Issue: 28
Publisher:
Materials Research Society (MRS)
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
graphene; graphene oxide; membranes; separation; nanotechnology; scale up; Environmental Molecular Sciences Laboratory