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- Moon, Hoi Ri
- Functional Inorganic Nanomaterials Lab for Energy
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Thermally modulated multilayered graphene oxide for hydrogen storage
- Author(s)
- Kim, Byung Hoon, Hong, Won G., Yu, Han Young, Han, Young-Kyu, Lee, Sang Moon, Chang, Sung Jin, Moon, Hoi Ri, Jun, Yongseok, Kim, Hae Jin
- Issued Date
- 2012-01
- 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.
- Publisher
- ROYAL SOC CHEMISTRY
- ISSN
- 1463-9076
- Keyword
- GRAPHITE OXIDE, CARBON, PAPER, PHYSISORPTION, SPECTROSCOPY, REDUCTION
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