Hydrogen uptake in vapor-grown carbon nanofibers

Fan, Yueying; Liao, Bin; Liu, Min; Wei, Yong-Liang; Lü, Manqi; Cheng, Hui‐Ming

doi:10.1016/s0008-6223(99)00165-7

Cited by 170 publications

(59 citation statements)

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“…Alkali metaldoped CNTs were reported to store 14 and 20 wt% hydrogen by Chen et al [3], but these ®ndings could have been compromised by the presence of water [8]. GNFs have been reported to be tremendous adsorbents for hydrogen, storing 10±12 wt% at $7±15 atm in one laboratory [6], and 30± 50 wt% (HaC 12) at 110 atm in another [4,5]. However, Ahn et al [9] measured GNFs to adsorb only $0X4 wt% hydrogen at 300 K and 160 bar, in similarity to most forms of carbon.…”

Section: Introductionmentioning

confidence: 99%

Quantum rotation of hydrogen in single-wall carbon nanotubes

Brown

Yildirim

Neumann

et al. 2000

Chemical Physics Letters

132

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We report inelastic neutron scattering results on hydrogen adsorbed onto samples containing single-wall carbon nanotubes. These materials have attracted considerable interest recently due to reports of high density hydrogen storage at room temperature. Inelastic neutron scattering clearly shows the ortho±para conversion of physisorbed hydrogen in a nanotube containing soot loaded with hydrogen. From the rotational J 0 3 1 transition, no indication of a signi®cant barrier to quantum rotation is seen. Ó

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Section: Introductionmentioning

confidence: 99%

Quantum rotation of hydrogen in single-wall carbon nanotubes

Brown

Yildirim

Neumann

et al. 2000

Chemical Physics Letters

132

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“…GNFs have the capability of adsorbing hydrogen due to their large surface area as well as the inherent strong attractive intermolecular force between carbon and hydrogen [154,[157][158][159][160].…”

Section: Carbon and Carbon-based Nanostructuresmentioning

confidence: 99%

Advances in the application of nanotechnology in enabling a ‘hydrogen economy’

2008

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Hydrogen is gaining a great deal of attention as an energy carrier as well as an alternative fuel. However, in order to fully implement the so called 'hydrogen economy' significant technical challenges need to be overcome in the fields of production and storage of hydrogen and its point of use especially in fuel cells for the automotive industry. The purpose of this review is to present and discuss recent advances in the use of nanomaterials for solar hydrogen production and on-board solid state storage of hydrogen. The role of nanotechnology in enhancing the efficiency of fuel cells and reducing their cost is also discussed.

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“…About 20% of the absorbed hydrogen remained in the sample after desorption at room temperature. Fan et al [30] investigated the hydrogen absorption of vapor-grown carbon nanofibers with a diameter of 5-300 nm. The fibers absorbed hydrogen up to 12.38 mass% when a hydrogen pressure of 12 MPa was applied.…”

Section: Hydrogen In Carbon Nanotubesmentioning

confidence: 99%

Hydrogen density in nanostructured carbon, metals and complex materials

Züttel

Wenger

Sudan

et al. 2004

Materials Science and Engineering: B

118

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The challenge in the research on hydrogen storage materials is to pack hydrogen atoms or molecules as close as possible. Hydrogen absorbed in metals can reach a density of more than 150 kg m −3 (e.g. Mg 2 FeH 6 or Al(BH 4 ) 3 ) at atmospheric pressure. For metallic hydrides, however, due to the large atomic mass of the transition metals the gravimetric hydrogen density is limited to less than 5 mass%. Nanostructured carbon materials, e.g. carbon nanotubes or high surface area graphite absorb hydrogen at liquid nitrogen proportional to the specific surface area 1.5 mass%/1000 m 2 g −1 . Light weight group three metals, e.g. Al, B, are able to bind four hydrogen atoms and form together with an alkali metal an ionic or at least partially covalent compound. The complex hydrides can only be cycled in as nanostructured materials.

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Hydrogen uptake in vapor-grown carbon nanofibers

Cited by 170 publications

References 0 publications

Quantum rotation of hydrogen in single-wall carbon nanotubes

Quantum rotation of hydrogen in single-wall carbon nanotubes

Advances in the application of nanotechnology in enabling a ‘hydrogen economy’

Hydrogen density in nanostructured carbon, metals and complex materials

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