Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content
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 sam...
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paper:paper_03603199_v39_n30_p16976_Dieuzeide2023-06-08T15:34:42Z Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content Amadeo, Norma Elvira 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 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. Fil:Amadeo, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v39_n30_p16976_Dieuzeide http://hdl.handle.net/20.500.12110/paper_03603199_v39_n30_p16976_Dieuzeide |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
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 |
| spellingShingle |
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 Amadeo, Norma Elvira Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content |
| topic_facet |
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 |
| description |
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. |
| author |
Amadeo, Norma Elvira |
| author_facet |
Amadeo, Norma Elvira |
| author_sort |
Amadeo, Norma Elvira |
| title |
Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content |
| title_short |
Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content |
| title_full |
Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content |
| title_fullStr |
Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content |
| title_full_unstemmed |
Glycerol steam reforming over Ni/mg/γ-Al2O3 catalysts effect of Ni(II) content |
| title_sort |
glycerol steam reforming over ni/mg/γ-al2o3 catalysts effect of ni(ii) content |
| publishDate |
2014 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v39_n30_p16976_Dieuzeide http://hdl.handle.net/20.500.12110/paper_03603199_v39_n30_p16976_Dieuzeide |
| work_keys_str_mv |
AT amadeonormaelvira glycerolsteamreformingovernimggal2o3catalystseffectofniiicontent |
| _version_ |
1768542178207858688 |