Hydrogen storage in single-walled carbon nanotube bundles and peapods

Masashi Shiraishi*, Taishi Takenobu, Atsuo Yamada, Masafumi Ata, Hiromichi Kataura

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

110 Citations (Scopus)


Desorption of molecular hydrogen from single-walled carbon nanotube (SWNT) bundles and peapods (C 60 encapsulated SWNTs) have been observed at about 350 K by the temperature-programmed-desorption (TPD) method. A treatment with NaOH after purification is found to be crucial for obtaining clean SWNTs and for desorbing hydrogen at this moderate temperature. A clear difference observed in gas evolution from SWNTs and peapods shows that the storage site for the hydrogen molecule is an inter-tube space and that 'sub-nanometer' sized spaces are indispensable for storing hydrogen molecules in this system.

Original languageEnglish
Pages (from-to)213-218
Number of pages6
JournalChemical Physics Letters
Issue number3-4
Publication statusPublished - 2002 May 31
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics


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