Effect of the order of Ni and Ce addition in SBA-15 on the activity in dry reforming of methane

Kaydouh, Marie-Nour; Hassan, Nissrine El; Davidson, Anne; Casale, Sandra; Zakhem, Henri El; Massiani, Pascale

doi:10.1016/j.crci.2015.01.004

Cited by 60 publications

(37 citation statements)

References 20 publications

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“…Recently, we showed that an efficient route to limit nickel sintering consists in using supports with high specific area and organized mesopores where the nickel nanoparticles can be occluded, leading not only to their stabilization against growing but also to their protection against carbon nanotube formation that is inhibited owing to steric constraints . Enhancing the interaction between the nickel active phase and the support was also found to play a determining role, especially when using ordered mesoporous alumina with high specific surface as support .…”

Section: Introductionmentioning

confidence: 99%

Porous Nickel‐Alumina Derived from Metal‐Organic Framework (MIL‐53): A New Approach to Achieve Active and Stable Catalysts in Methane Dry Reforming

et al. 2019

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An Al‐containing MIL‐53 metal‐organic framework with very high surface area (SBET=1130 m2.g−1, N2 sorption) was used as sacrificial template to prepare a nickel‐alumina‐based catalyst (Ni0AlMIL) highly active and stable in the reaction of dry reforming of methane (DRM). The procedure consisted in impregnating the activated (solvent free) MIL‐53 sample with a nickel precursor solution, then calcining the material to remove the organic linkers and subsequently reducing it to form the reduced nickel active phase. At the step of calcination, this procedure results in the formation of a porous uniform spinel phase with Ni nanospecies embedded in the alumina‐based matrix, as deduced from XRD, TPR and TEM analyses. This leads after reduction to a porous lamellar γ‐Al2O3 material with small Ni0 nanoparticles homogeneously dispersed and stabilized within the support. The performances of this catalyst in DRM are better than those of two reference Ni/alumina catalysts prepared for comparison by conventional nickel impregnation of two preformed alumina supports: a first one obtained by calcination of MIL‐53 (AlMIL) and a second one consisting of a commercial γ‐Al2O3 batch (AlCOM). Under steady state conditions at a temperature of 650 °C and a pressure of 1 bar, the higher CH4 and CO2 conversions (till 3 times higher than on Ni0/AlCOM), high catalytic stability (no loss of activity after 13–100 h) and higher selectivity towards DRM (H2:CO products ratio remaining at 1) on Ni0AlMIL compared to the other catalysts is believed to come from the particularly strong interaction between the nickel and alumina phases generated by using the unique high specific surface of the parent MOF support to deposit nickel. This creates an intimate mixing favorable to a persisting interaction of the nickel nanoparticles with the alumina support in the reduced material. The lamellar shape of the γ‐Al2O3 composing the catalyst and its remaining high specific surface may also contribute to the excellent Ni resistance to sintering and in turn to the inhibition of carbon nanotubes formation during the reaction.

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Section: Introductionmentioning

confidence: 99%

Porous Nickel‐Alumina Derived from Metal‐Organic Framework (MIL‐53): A New Approach to Achieve Active and Stable Catalysts in Methane Dry Reforming

et al. 2019

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“…For Ni-Ce samples, a slight shift to higher temperatures of the maximum temperatures associated to the NiO reduction peaks was generally observed whatever the support (Figure 4, dashed lines). This could be explained, according to the literature 34,45 , by the order of 11 metals incorporation. Thus, the addition of Ce after Ni impregnation could be responsible for a reduction of the accessibility of hydrogen molecules to NiO species leading to the observed decrease in Ni species reducibility 34,45 .…”

Section: Catalysts Characterizationmentioning

confidence: 99%

“…This could be explained, according to the literature 34,45 , by the order of 11 metals incorporation. Thus, the addition of Ce after Ni impregnation could be responsible for a reduction of the accessibility of hydrogen molecules to NiO species leading to the observed decrease in Ni species reducibility 34,45 . It has to be noted that, in the case of Ce-Ni MCM-41 catalyst, two peaks at ~ 380 and ~700ºC can also be found, which could be attributed to the reduction of NiO species with medium and strong interaction with the support and/or to the Ce 4+ reduction to Ce 3+ , as reported in the literature for Ni-Ce/MCM-41 catalysts 46 .…”

Section: Catalysts Characterizationmentioning

confidence: 99%

Micro- and mesoporous supports for CO2 methanation catalysts: A comparison between SBA-15, MCM-41 and USY zeolite

Bacariza

Graça

Bebiano

et al. 2018

Chemical Engineering Science

116

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This version is available at https://strathprints.strath.ac.uk/62298/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. All the results are comparable to the obtained using a HNaUSY zeolite with Si/Al=2.8 as support. Cerium incorporation on Ni/mesoporous supports allowed enhancing the CO2 conversion, especially at lower temperatures, as already reported for the zeolite-based samples.

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“…For SRM and DRM catalysts, it was recently found that confinement of the nickel active phase within structured pores of oxide supports, especially mesoporous silica [40][41][42] or alumina [43][44][45][46], helps minimizing Ni 0 sintering during reaction, thus preserving reactivity with time on stream.…”

Section: Introductionmentioning

confidence: 99%

Ordered mesoporous “one-pot” synthesized Ni-Mg(Ca)-Al2O3 as effective and remarkably stable catalysts for combined steam and dry reforming of methane (CSDRM)

Jabbour¹,

Massiani²,

Davidson³

et al. 2017

Applied Catalysis B: Environmental

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139

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Effect of the order of Ni and Ce addition in SBA-15 on the activity in dry reforming of methane

Cited by 60 publications

References 20 publications

Porous Nickel‐Alumina Derived from Metal‐Organic Framework (MIL‐53): A New Approach to Achieve Active and Stable Catalysts in Methane Dry Reforming

Porous Nickel‐Alumina Derived from Metal‐Organic Framework (MIL‐53): A New Approach to Achieve Active and Stable Catalysts in Methane Dry Reforming

Micro- and mesoporous supports for CO2 methanation catalysts: A comparison between SBA-15, MCM-41 and USY zeolite

Ordered mesoporous “one-pot” synthesized Ni-Mg(Ca)-Al2O3 as effective and remarkably stable catalysts for combined steam and dry reforming of methane (CSDRM)

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