Steam reforming of Bio-ethanol on Alkali-doped Ni/MgO catalysts: hydrogen production for MC fuel cell (Articolo in rivista)

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  • Steam reforming of Bio-ethanol on Alkali-doped Ni/MgO catalysts: hydrogen production for MC fuel cell (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.apcata.2004.03.05 (literal)
Alternative label
  • *Frusteri F., *Freni S., *Chiodo V., *Spadaro L., *Di Blasi O., *Bonura G. and **Cavallaro S. (2004)
    Steam reforming of Bio-ethanol on Alkali-doped Ni/MgO catalysts: hydrogen production for MC fuel cell
    in Applied catalysis. A, General (Print); Elsevier B.V., Amsterdam (Belgio)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • *Frusteri F., *Freni S., *Chiodo V., *Spadaro L., *Di Blasi O., *Bonura G. and **Cavallaro S. (literal)
Pagina inizio
  • 1 (literal)
Pagina fine
  • 7 (literal)
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  • 270 (literal)
Rivista
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  • 7 (literal)
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  • 1-2 (literal)
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  • ISI Web of Science (WOS) (literal)
  • Google Scholar (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • *Istituto CNR-ITAE, Via Salita S. Lucia Sopra Contesse 39, I-98126 Messina, Italy **Dipartimento di Chimica Industriale e Ingegneria dei Materiali, Università di Messina, P.O. Box 29, I-98166, S. Agata, Messina, Italy (literal)
Titolo
  • Steam reforming of Bio-ethanol on Alkali-doped Ni/MgO catalysts: hydrogen production for MC fuel cell (literal)
Abstract
  • The effects of alkali addition (e.g. Li, Na, K) on the behavior of Ni/MgO catalyst in the bio-ethanol steam reforming have been investigated. Li and Na promote the NiO reduction but negatively affect the dispersion of the Ni/MgO catalyst, whereas K does not significantly affect either morphology or dispersion. Li and K enhance the stability of Ni/MgO mainly by depressing Ni sintering. Coke formation on bare and doped catalysts occurs but with orders of magnitude lower rates than those claimed for Ni supported on an acidic carrier. The peculiar influence of the mean Ni particle size on the turnover frequency (TOF s-1) has been explained by invoking a structure-sensitive character of the ethanol dehydrogenation reaction considered as being the first step of the reaction which evolves according to the following mechanism: ethanol hydrogenation->acetaldehyde decomposition->steam reforming of methane and water gas shift reactions. (literal)
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