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Kim, Byung Hoon
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Thermally modulated multilayered graphene oxide for hydrogen storage

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Title
Thermally modulated multilayered graphene oxide for hydrogen storage
Author
Kim, Byung HoonHong, Won G.Yu, Han YoungHan, Young-KyuLee, Sang MoonChang, Sung JinMoon, Hoi RiJun, YongseokKim, Hae Jin
Keywords
GRAPHITE OXIDE; CARBON; PAPER; PHYSISORPTION; SPECTROSCOPY; REDUCTION
Issue Date
2012-01
Publisher
ROYAL SOC CHEMISTRY
Citation
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.14, no.4, pp.1480 - 1484
Abstract
We have obtained high pressure H(2) isotherms with respect to the interlayer distance of multilayered graphene oxide (GO) modulated by thermal annealing. The maximum storage capacity is 4.8 (0.5) wt% at 77 K (298 K) and at 9.0 MPa pressure. We found the optimum GO interlayer distance for maximum H2 uptake at 6.5 angstrom, similar to the predicted distances from first-principles calculations for graphite materials. Our results reveal that multilayered GO can be a practical material of choice to allow the use of graphene as a hydrogen storage material, provided that only small amounts of O and OH functional groups exist as spacers on GO sheets.
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DOI
10.1039/c2cp23683d
ISSN
1463-9076
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