Hydrogen adsorption and desorption in carbon nanotube systems and its mechanisms

M. Shiraishi, T. Takenobu, H. Kataura, M. Ata

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

The hydrogen physisorption properties in single-walled carbon nanotube (SWNT) based materials were characterized. The SWNTs were highly purified and three useful pores for hydrogen physisorption were activated. Hydrogen was physisorbed in intra-tube pores at room temperature and the capacity was estimated to be about 0.3-0.4 wt. % at room temperature. The adsorption capacity can be explained by the Langmuir model. The intra-tube pores have large adsorption potential and this induces hydrogen physisorption at comparatively higher temperatures. This fact indicates the importance of fabricating sub-nanometer ordered pores for this phenomena.

Original languageEnglish
Pages (from-to)947-954
Number of pages8
JournalApplied Physics A: Materials Science and Processing
Volume78
Issue number7
Publication statusPublished - 2004 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

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