Temperature-dependent state of hydrogen molecules within the nanopore of multi-walled carbon nanotubes

In observation of the state of hydrogen molecules within the carbon nanopore, the excess adsorption amounts of hydrogen on the multi-walled carbon nanotubes (MWCNTs) were measured at equilibrium pressure–temperatures from 0.1 to 12.3 MPa and 123 to 310 K . The principles of thermodynamic equilibrium...

Full description

Saved in:
Bibliographic Details
Published in:International journal of hydrogen energy 2004-04, Vol.29 (5), p.481-489
Main Authors: Zheng, Qingrong, Gu, Anzhong, Lu, Xuesheng, Lin, Wensheng
Format: Article
Language:English
Subjects:
Adsorption
Alternative fuels. Production and utilization
Applied sciences
Energy
Exact sciences and technology
Fuels
Hydrogen
Maximum surface coverage
Multi-walled carbon nanotubes (MWCNTs)
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In observation of the state of hydrogen molecules within the carbon nanopore, the excess adsorption amounts of hydrogen on the multi-walled carbon nanotubes (MWCNTs) were measured at equilibrium pressure–temperatures from 0.1 to 12.3 MPa and 123 to 310 K . The principles of thermodynamic equilibrium and a higher order Virial adsorption coefficient were applied to determining the maximum surface coverage of hydrogen molecules on the adsorbent surface. The thermodynamic equilibrium-based adsorption model was linearized to estimate the interaction energy among the adsorbed hydrogen molecules at each adsorption equilibrium state. The results demonstrate that the interaction energies among adsorbed hydrogen molecules are positive in the lower temperature region (
ISSN:0360-3199
1879-3487
DOI:10.1016/S0360-3199(03)00105-8