Inelastic neutron scattering from molecular hydrogen trapped on surfaces

8 Inelastic neutron scattering from molecular hydrogen trapped on surfaces 

The interest in hydrogen adsorption onto carbon nanotubes was initiated by reports that remarkably high gravimetric adsorption could be obtained on 

6 The INS spectra of para-H2 in (from top to bottom) zeolites Na-X, Ca-X, Zn-X. Also shown are the spectra decomposed into Gaussians. The Zn-X and the Na-X spectra had their backgrounds removed using a smooth function. These spectra are all measured at low H2 uptakes of around 0.15 wt% [71]. 

4 Molecular hydrogen storage in metal oxide frameworks 

In these experiments the sample was kept at low temperatures but the hydrogen was not converted to the para state before admission to the sample capsule so it is presumed that it contained about 75% of ortho-hydrogen. The first MOF to be measured (MOF-5 = IRMOFI) [81] shows peaks at 10.3 and 

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