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Abstract:

The aim of the present work is to analyse the effect of the Ni(II) content for the Ni(II)-Mg(II)/γ-Al2O3 catalysts on the textural and structural characteristics of the solid, as well on the catalytic activity and selectivity to H2 for the steam reforming of glycerol at atmospheric pressure. The samples with different contents of Ni(II) were characterized by different techniques including: N2 sorptometry, PXRD, H2 chemisorption, elemental analysis by inductively coupled plasma atomic emission spectroscopy (ICP-AES) and temperature programmed reduction (TPR). The catalytic activity of the samples was tested in the steam reforming of glycerol. It was concluded that the Ni(II) species present on the catalysts are strongly dependent on Ni(II) loading. As Ni(II) content increases NiO nanocrystals are formed; the Ni(0) sites obtained from the reduction of these nanocrystals are responsible for the catalytic activity. On the other hand, at high Ni(II) contents the NiO nanocrystal size increases and as a consequence de intrinsic catalytic activity decreases. © 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content
Autor:Dieuzeide, M.L.; Jobbagy, M.; Amadeo, N.
Filiación:ITHES (UBA-CONICET), Laboratorio de Procesos Catalíticos, Ciudad Universitaria, 1428 C.A.B.A, Argentina
INQUIMAE, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428 C.A.B.A, Argentina
Palabras clave:Glycerol; Ni(II) content; Ni(II)-Mg(II)/γ-Al2O3 catalysts; Steam reforming; Aluminum; Atmospheric pressure; Atomic emission spectroscopy; Catalyst activity; Catalyst selectivity; Catalysts; Catalytic reforming; Emission spectroscopy; Glycerol; Inductively coupled plasma; Nanocrystals; Nickel; Steam; Inductively coupled plasma atomic emission spectroscopy; NiO nanocrystals; Steam reforming of glycerols; Structural characteristics; Temperature-programmed reduction; Steam reforming
Año:2014
Volumen:39
Número:30
Página de inicio:16976
Página de fin:16982
DOI: http://dx.doi.org/10.1016/j.ijhydene.2014.08.097
Título revista:International Journal of Hydrogen Energy
Título revista abreviado:Int J Hydrogen Energy
ISSN:03603199
CODEN:IJHED
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v39_n30_p16976_Dieuzeide

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Citas:

---------- APA ----------
Dieuzeide, M.L., Jobbagy, M. & Amadeo, N. (2014) . Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content. International Journal of Hydrogen Energy, 39(30), 16976-16982.
http://dx.doi.org/10.1016/j.ijhydene.2014.08.097
---------- CHICAGO ----------
Dieuzeide, M.L., Jobbagy, M., Amadeo, N. "Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content" . International Journal of Hydrogen Energy 39, no. 30 (2014) : 16976-16982.
http://dx.doi.org/10.1016/j.ijhydene.2014.08.097
---------- MLA ----------
Dieuzeide, M.L., Jobbagy, M., Amadeo, N. "Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content" . International Journal of Hydrogen Energy, vol. 39, no. 30, 2014, pp. 16976-16982.
http://dx.doi.org/10.1016/j.ijhydene.2014.08.097
---------- VANCOUVER ----------
Dieuzeide, M.L., Jobbagy, M., Amadeo, N. Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content. Int J Hydrogen Energy. 2014;39(30):16976-16982.
http://dx.doi.org/10.1016/j.ijhydene.2014.08.097