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Improving hydrogen storage in Ni-doped carbon nanospheres

AuthorsZubizarreta, Leire ; Menéndez Díaz, José Ángel ; Pis Martínez, José Juan ; Arenillas de la Puente, Ana
KeywordsHydrogen storage
Carbon materials
Issue Date3-Mar-2009
CitationInternational Journal of Hydrogen Energy (2009), doi: 10.1016/j.ijhydene.2009.01.040
AbstractThe 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.
Description7 pages, 8 figures.-- Article in press.
Publisher version (URL)http://dx.doi.org/10.1016/j.ijhydene.2009.01.040
Appears in Collections:(INCAR) Artículos
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