2003年1月10日
Gas-solid interactions in the hydrogen/single-walled carbon nanotube system
Chemical Physics Letters
- ,
- ,
- 巻
- 367
- 号
- 5-6
- 開始ページ
- 633
- 終了ページ
- 636
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/S0009-2614(02)01781-5
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. © 2002 Elsevier Science B.V. All rights reserved.
- ID情報
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- DOI : 10.1016/S0009-2614(02)01781-5
- ISSN : 0009-2614
- SCOPUS ID : 0037427733