Hydrogen production from CH4 dry reforming over bimetallic Ni–Co/Al2O3 catalyst

Siang, Tan Ji; Singh, Sharanjit; Omoregbe, Osaze; Bach, Long Giang; Phúc, Nguyễn Hữu; Vo, Dai‐Viet N.

doi:10.1016/j.joei.2017.06.001

Cited by 72 publications

(26 citation statements)

References 24 publications

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“…Similar findings were also reported by Siang et al and Ray et al for 5%Ni‐10%Co/Al 2 O 3 and 11.25%Ni‐3.75%Co/Al 2 O 3 , respectively. In contrast, Zhang et al.…”

Section: Dry Reforming Of Methane Over Ni/co‐based Catalystsmentioning

confidence: 99%

High‐Performance Bimetallic Catalysts for Low‐Temperature Carbon Dioxide Reforming of Methane

et al. 2020

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Catalytic dry reforming of methane (DRM) is a promising way for renewable syngas production due to the utilization of both CO2 and CH4 greenhouse gases. Current approaches were made to improve the catalytic activity and coke resistance by introducing a second metal into the Ni‐based catalytic system. This bimetallic catalytic system showed a significant improvement in coke resistance due to the synergistic effect of both metals towards the reaction. This review summarizes recent developments in bimetallic catalysts in DRM which focused on the evaluation of catalysts, deactivation studies, and reaction mechanisms of developed bimetallic catalysts.

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“…Similar findings were also reported by Siang et al and Ray et al for 5%Ni‐10%Co/Al 2 O 3 and 11.25%Ni‐3.75%Co/Al 2 O 3 , respectively. In contrast, Zhang et al.…”

Section: Dry Reforming Of Methane Over Ni/co‐based Catalystsmentioning

confidence: 99%

High‐Performance Bimetallic Catalysts for Low‐Temperature Carbon Dioxide Reforming of Methane

et al. 2020

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“…[7] However, most of the existing catalysts using common oxide supports as well conventional nickel deposition routes face two important drawbacks: firstly metal sintering, which is accentuated by the high temperature at which the reaction has to be carried out due to thermodynamic reasons; [8,9] secondly, important formation of carbon deposits during the course of the reaction, due to the occurrence of CH 4 decomposition as side reaction [10,11] that leads to progressive activity loss by inhibiting the active sites and to plugging of the reactor when carbon nanotubes are formed in big amount. [12,13] In the last decade, numerous attempts like the use of a bimetallic catalyst [14][15][16] or altering the type of support [17,18] have been made to overcome these barriers and design more robust catalysts.…”

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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“…To further explain the observed catalytic activity, Raman spectroscopy and SEM scans were utilized to determine the nature of the coke deposited on the spent catalyst. The presence of a whisker type carbon was identified, which in contrary to crystalline carbon, is reactive and did not hinder the accessibility of gaseous reactants to the active metal sites [54]. A similar study by Uner and coworkers has demonstrated the formation of different types of carbonaceous residues on the spent catalyst surface of 8 wt % Ni-4 wt % Co/CeO 2 [16].…”

Section: Bimetallic Catalystsmentioning

confidence: 68%

“…The bimetallic catalyst with small crystallite size was prepared using to improve the catalyst activity and stability. The formation of an amorphous carbon was evident explaining the catalyst prolonged lifetime [54] Ni-Co ZrO 2 -Al 2 O 3 1123 93 1 The ultrasound-mediated synthesis produced catalysts with high surface area, small crystal size, and high metal dispersion resulted in the observed enhanced stability [56] Ni-Co CeO 2 973 64 0.80…”

Section: Bimetallic Catalystsmentioning

confidence: 99%

“…The physicochemical properties of 5 wt % Ni-10 wt % Co/Al 2 O 3 catalyst prepared via co-impregnation method were examined and its catalytic performance in DRM was evaluated by Siang et al [54]. The formation of NiO, Co 3 O 4 , NiCo 2 O 4 , CoAl 2 O 4 , and NiAl 2 O 4 phases was confirmed using XRD analysis leading to CH 4 conversion and H 2 /CO ratio of 67% and 1, respectively, at 700 • C. This was mainly attributed to the fine dispersion of nanosized Ni and Co oxides into the Al 2 O 3 surface dictating the strong metal-support interaction.…”

Section: Bimetallic Catalystsmentioning

confidence: 99%

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Recent Advances in Supported Metal Catalysts for Syngas Production from Methane

2018

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Abstract:Over the past few years, great attention is paid to syngas production processes from different resources especially from abundant sources, such as methane. This review of the literature is intended for syngas production from methane through the dry reforming (DRM) and the steam reforming of methane (SRM). The catalyst development for DRM and SRM represents the key factor to realize a commercial application through the utilization of more efficient catalytic systems. Due to the enormous amount of published literature in this field, the current work is mainly dedicated to the most recent achievements in the metal-oxide catalyst development for DRM and SRM in the past five years. Ni-based supported catalysts are considered the most widely used catalysts for DRM and SRM, which are commercially available; hence, this review has focused on the recent advancements achieved in Ni catalysts with special focus on the various attempts to address the catalyst deactivation challenge in both DRM and SRM applications. Furthermore, other catalytic systems, including Co-based catalysts, noble metals (Pt, Rh, Ru, and Ir), and bimetallic systems have been included in this literature review to understand the observed improvements in the catalytic activities and coke suppression property of these catalysts.

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Hydrogen production from CH4 dry reforming over bimetallic Ni–Co/Al2O3 catalyst

Cited by 72 publications

References 24 publications

High‐Performance Bimetallic Catalysts for Low‐Temperature Carbon Dioxide Reforming of Methane

High‐Performance Bimetallic Catalysts for Low‐Temperature Carbon Dioxide Reforming of Methane

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

Recent Advances in Supported Metal Catalysts for Syngas Production from Methane

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