title: Thermally modulated multilayered graphene oxide for hydrogen storage.
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 H(2) uptake at 6.5 Å, 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.
authors.affiliation: Division of Materials Science, Korea Basic Science Institute, Daejeon, Republic of Korea.
authors.forename: Byung Hoon
authors.initials: BH
authors.lastname: Kim
authors.forename: Won G
authors.initials: WG
authors.lastname: Hong
authors.forename: Han Young
authors.initials: HY
authors.lastname: Yu
authors.forename: Young-Kyu
authors.initials: YK
authors.lastname: Han
authors.forename: Sang Moon
authors.initials: SM
authors.lastname: Lee
authors.forename: Sung Jin
authors.initials: SJ
authors.lastname: Chang
authors.forename: Hoi Ri
authors.initials: HR
authors.lastname: Moon
authors.forename: Yongseok
authors.initials: Y
authors.lastname: Jun
authors.forename: Hae Jin
authors.initials: HJ
authors.lastname: Kim