Methane mobility in carbon nanotubes

Quasi-elastic neutron scattering has been used to characterize the diffusivity of CH 4 molecules condensed in single-wall carbon nanotubes. It is shown that the two sites of adsorption, previously observed by adsorption volumetry and calorimetry measurements, correspond to a solid-like phase for the...

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Bibliographic Details
Published in:Surface science 2000-07, Vol.460 (1), p.243-248
Main Authors: Bienfait, M., Asmussen, B., Johnson, M., Zeppenfeld, P.
Format: Article
Language:English
Subjects:
Adsorption and desorption kinetics
evaporation and condensation
Carbon
Condensed matter: structure, mechanical and thermal properties
Diffusion
interface formation
Exact sciences and technology
Neutron scattering
Physical adsorption
Physics
Porous solids
Solid surfaces and solid-solid interfaces
Solid-fluid interfaces
Surface diffusion
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
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Summary:Quasi-elastic neutron scattering has been used to characterize the diffusivity of CH 4 molecules condensed in single-wall carbon nanotubes. It is shown that the two sites of adsorption, previously observed by adsorption volumetry and calorimetry measurements, correspond to a solid-like phase for the more strongly bound site at T
ISSN:0039-6028
1879-2758
DOI:10.1016/S0039-6028(00)00563-X