Gas-solid interactions in the hydrogen/single-walled carbon nanotube system

Masashi Shiraishi*, Taishi Takenobu, Masafumi Ata

*この研究の対応する著者

研究成果: Article査読

104 被引用数 (Scopus)

抄録

Gas-solid interactions between hydrogen and single-walled carbon nanotubes (SWNTs) were investigated using highly purified SWNTs. The activation energy of hydrogen desorption, measured to be 0.21 eV, indicates that hydrogen is physisorbed in the pores and that inter-tube pores have an adsorption potential of about -0.21 eV, which induces hydrogen physisorption at ambient temperature. The total amount of adsorbed hydrogen, about 0.3 wt% at 9 MPa, shows that 38% of the inter-tube sites are occupied. These .ndings are interpreted in terms of the chemical potential of hydrogen and the adsorption potential of the inter-tube pores.

本文言語English
ページ(範囲)633-636
ページ数4
ジャーナルChemical Physics Letters
367
5-6
DOI
出版ステータスPublished - 2003 1月 10
外部発表はい

ASJC Scopus subject areas

  • 物理化学および理論化学
  • 分光学
  • 原子分子物理学および光学

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