CaltechAUTHORS
Published November 21, 2005 | Version Published
Journal Article Open

Nanopores of carbon nanotubes as practical hydrogen storage media

Creators

  • 1. ROR icon Korea Advanced Institute of Science and Technology
  • 2. ROR icon California Institute of Technology

Abstract

We report on hydrogen desorption mechanisms in the nanopores of multiwalled carbon nanotubes (MWCNTs). The as-grown MWCNTs show continuous walls that do not provide sites for hydrogen storage under ambient conditions. However, after treating the nanotubes with oxygen plasma to create nanopores in the MWCNTs, we observed the appearance of a new hydrogen desorption peak in the 300–350 K range. Furthermore, the calculations of density functional theory and molecular dynamics simulations confirmed that this peak could be attributed to the hydrogen that is physically adsorbed inside nanopores whose diameter is approximately 1 nm. Thus, we demonstrated that 1 nm nanopores in MWCNTs offer a promising route to hydrogen storage media for onboard practical applications.

Additional Information

© 2005 American Institute of Physics (Received 2 June 2005; accepted 12 October 2005; published online 16 November 2005) This research was supported by the research program of KOSEF (Grant No. R012005000103330)and the Center for Ultramicrochemical Process Systems (CUPS) sponsored by KOSEF (2005).

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Additional details

Identifiers

Eprint ID
1353
Resolver ID
CaltechAUTHORS:HANapl05

Funding

Korea Science and Engineering Foundation
R012005000103330

Dates

Created
2006-01-11
Created from EPrint's datestamp field
Updated
2021-11-08
Created from EPrint's last_modified field

Caltech Custom Metadata

Other Numbering System Name
WAG
Other Numbering System Identifier
0647