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http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2693| Title: | Nature of the bound states of molecular hydrogen in carbon nanohorns |
| Keywords: | Nanoscale materials Neutron diffraction and scattering Diffusion and thermal diffusion in liquids Chemisorption/physisorption: adsorbates on surfaces |
| Publisher: | American Physical Society |
| Description: | The effects of confining molecular hydrogen within carbon nanohorns are studied via high-resolution quasielastic and inelastic neutron spectroscopies. Both sets of data are remarkably different from those obtained in bulk samples in the liquid and crystalline states. At temperatures where bulk hydrogen is liquid, the spectra of the confined sample show an elastic component indicating a significant proportion of immobile molecules as well as distinctly narrower quasielastic line widths and a strong distortion of the line shape of the para - ortho rotational transition. The results show that hydrogen interacts far more strongly with such carbonous structures than it does to carbon nanotubes, suggesting that nanohorns and related nanostructures may offer significantly better prospects as lightweight media for hydrogen storage applications. FFA gratefully acknowledges financial support from the UK Science and Technology Facilities Council. Peer reviewed |
| URI: | http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2693 |
| Other Identifiers: | arXiv:0706.0428v1 Physical Review Letters 98, 21 (25/05/2007) 215503 0031-9007 http://hdl.handle.net/10261/2693 10.1103/PhysRevLett.98.215503 |
| Appears in Collections: | Digital Csic |
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