TY - JOUR
T1 - Gas-solid interactions in the hydrogen/single-walled carbon nanotube system
AU - Shiraishi, Masashi
AU - Takenobu, Taishi
AU - Ata, Masafumi
PY - 2003/1/10
Y1 - 2003/1/10
N2 - 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.
AB - 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.
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U2 - 10.1016/S0009-2614(02)01781-5
DO - 10.1016/S0009-2614(02)01781-5
M3 - Article
AN - SCOPUS:0037427733
VL - 367
SP - 633
EP - 636
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 5-6
ER -