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Título

Improving hydrogen storage in Ni-doped carbon nanospheres

AutorZubizarreta, Leire ; Menéndez Díaz, José Ángel ; Pis Martínez, José Juan ; Arenillas de la Puente, Ana
Palabras claveHydrogen storage
Carbon materials
Nickel
Spillover
Fecha de publicación3-mar-2009
EditorElsevier
CitaciónInternational Journal of Hydrogen Energy (2009), doi: 10.1016/j.ijhydene.2009.01.040
ResumenThe effect of nickel distribution and content in Ni-doped carbon nanospheres on hydrogen storage capacity under conditions of moderate temperature and pressure was studied. It was found that the nickel distribution, obtained by using different doping techniques and conditions, has a noticeable influence on hydrogen storage capacity. The samples with the most homogeneous nickel distribution, obtained by pre-oxidising the carbon nanospheres, displayed the highest storage capacity. In addition, storage capacity is influenced by the amount of nickel. It was found a higher storage capacity in samples containing 5 wt.% of Ni. This is due to the greater interactions between the nickel and the support that produce a higher activation of the solid through a spillover effect.
Descripción7 pages, 8 figures.-- Article in press.
Versión del editorhttp://dx.doi.org/10.1016/j.ijhydene.2009.01.040
URIhttp://hdl.handle.net/10261/11285
DOI10.1016/j.ijhydene.2009.01.040
ISSN0360-3199
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