کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5376916 | 1504331 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental Q-dependence of the rotational JÂ =Â 0-to-1 transition of molecular hydrogen adsorbed in single-wall carbon nanotube bundles
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
Inelastic neutron scattering spectra of para-Hydrogen adsorbed in single-wall carbon nanotubes have been measured at 20Â K, at different surface loadings, and at a set of kinematic trajectories. These show the presence of at least two different adsorption sites in the nanotube bundle. Only a weak hindrance to rotation is observed on the more adsorptive site which is preferentially occupied at low H2 concentrations while a completely free rotation was found at the second and weaker site where the determined centre-of-mass dynamics suggests H2-H2 distances similar to those on the graphite surface and in the bulk solid.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 328, Issues 1â3, 29 September 2006, Pages 318-323
Journal: Chemical Physics - Volume 328, Issues 1â3, 29 September 2006, Pages 318-323
نویسندگان
P.A. Georgiev, A. Giannasi, D.K. Ross, M. Zoppi, J.L. Sauvajol, J. Stride,