Nanopores of carbon nanotubes as practical hydrogen storage media

Sang Soo Han, Hyun Seok Kim, Kyu Sung Han, Jai Young Lee, Hyuck Mo Lee, Jeung Ku Kang, Seong Ihl Woo, Adri C.T. Van Duin, William A. Goddard

Research output: Contribution to journalArticle

32 Scopus citations

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.

Original languageEnglish (US)
Article number213113
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume87
Issue number21
DOIs
StatePublished - Nov 25 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Nanopores of carbon nanotubes as practical hydrogen storage media'. Together they form a unique fingerprint.

  • Cite this

    Han, S. S., Kim, H. S., Han, K. S., Lee, J. Y., Lee, H. M., Kang, J. K., Woo, S. I., Van Duin, A. C. T., & Goddard, W. A. (2005). Nanopores of carbon nanotubes as practical hydrogen storage media. Applied Physics Letters, 87(21), 1-3. [213113]. https://doi.org/10.1063/1.2133928