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Selective Gas Transport Through Few-Layered Graphene and Graphene Oxide Membranes

Title
Selective Gas Transport Through Few-Layered Graphene and Graphene Oxide Membranes
Author
백운규
Keywords
NANOPOROUS CARBON MEMBRANES; POROUS GRAPHENE; SEPARATION; PERMEATION; WATER
Issue Date
2013-08
Publisher
AMER ASSOC ADVANCEMENT SCIENCE
Citation
SCIENCE, OCT 2013, 342(6154), P.91-95, 5P.
Abstract
Graphene is a distinct two-dimensional material that offers a wide range of opportunities for membrane applications because of ultimate thinness, flexibility, chemical stability, and mechanical strength. We demonstrate that few-and several-layered graphene and graphene oxide (GO) sheets can be engineered to exhibit the desired gas separation characteristics. Selective gas diffusion can be achieved by controlling gas flow channels and pores via different stacking methods. For layered (3- to 10-nanometer) GO membranes, tunable gas transport behavior was strongly dependent on the degree of interlocking within the GO stacking structure. High carbon dioxide/nitrogen selectivity was achieved by well-interlocked GO membranes in high relative humidity, which is most suitable for postcombustion carbon dioxide capture processes, including a humidified feed stream.
URI
http://science.sciencemag.org/content/342/6154/91http://hdl.handle.net/20.500.11754/45380
ISSN
0036-8075
DOI
10.1126/science.1236098
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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