Quantum rotation of hydrogen in single-wall carbon nanotubes
نویسندگان
چکیده
We report inelastic neutron scattering results on hydrogen adsorbed onto samples containing single-wall carbon nanotubes. These materials have attracted considerable interest recently due to reports of high density hydrogen storage at room temperature. Inelastic neutron scattering clearly shows the ortho±para conversion of physisorbed hydrogen in a nanotube containing soot loaded with hydrogen. From the rotational J 0! 1 transition, no indication of a signi®cant barrier to quantum rotation is seen. Ó 2000 Elsevier Science B.V. All rights reserved.
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