Influence of reduction temperature on Ni particle size and catalytic performance of Ni/Mg(Al)O catalyst for CO2 reforming of CH4

Zhan, Yingying; Song, Kai; Shi, Zemin; Wan, Chunsheng; Pan, Jian; Li, Dalin; Au, Chak Tong; Jiang, Lilong

doi:10.1016/j.ijhydene.2019.11.181

Cited by 33 publications

(8 citation statements)

References 68 publications

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“…In the spent catalyst, the graphitic carbon deposited has been indicated by the peaks corresponding to 2theta value of 26.6°, 44.8°and 51°[ICDD 03-065-6212], Figure 4. The results are in agreement with the existing literature [21,27,28].…”

Section: X-ray Diffraction Analysis Of Prepared Catalystssupporting

confidence: 93%

Syngas production employing nickel on alumina‐magnesia supported catalyst via dry methane reforming

Yusuf

Farooqi

Ying

et al. 2021

Materialwissenschaft Werkst

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Nickel supported on alumina‐magnesia bimetallic oxide support (Ni/Al2O3‐MgO) nano‐catalysts were prepared by the co‐precipitation followed by impregnation (two steps) method separately and tested for the dry methane reforming. The optimum bimetallic oxide catalyst support ratio (i. e., alumina: magnesia) is tested and it has been found that alumina:magnesia ratio of 1 : 2 showed the most stable results. The effect of nickel loading has been studied by impregnating the bimetallic oxide support with nickel as 10 wt.%, 12 wt.%, 14 wt.%, and 16 wt.%. It has been found that the catalyst containing 12 wt.% nickel showed the best activity in terms of methane (CH4) and carbon dioxide (CO2) percentage conversions, syngas (H2:CO) ratio, lowest coke formation and stability for dry methane reforming at 800 °C, 1 atm and methane: carbon dioxide ratio of unity. The Brunauer‐Emmett‐Teller surface area and pore size analysis of fresh catalyst has been carried out. The x‐ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, energy dispersive x‐ray and elemental mapping analysis for fresh and spent catalysts has been obtained confirming the coke formation during the reaction.

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Section: X-ray Diffraction Analysis Of Prepared Catalystssupporting

confidence: 93%

Syngas production employing nickel on alumina‐magnesia supported catalyst via dry methane reforming

Yusuf

Farooqi

Ying

et al. 2021

Materialwissenschaft Werkst

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“…From an industrial perspective, nickel (Ni)-based catalysts have been identifying as the most promising candidates for DRM and a good alternative to rare metals such as platinum (Pt). [2][3][4][5][6][7][8][9][10] However, the challenge to maintain a stable and active catalyst under DRM conditions is more challenging when using Ni as opposed to Pt. [11,12] Whereas for Pt-based catalysts, with a Tammann temperature of ~750 °, the issue of sintering under the high reaction temperature of DRM (i. e. 800 °C) is minor, for Ni-based catalysts, with a Tammann temperature of 590 °C, this becomes a major issue.…”

Section: Introductionmentioning

confidence: 99%

“…From an industrial perspective, nickel (Ni)‐based catalysts have been identifying as the most promising candidates for DRM and a good alternative to rare metals such as platinum (Pt) [2–10] . However, the challenge to maintain a stable and active catalyst under DRM conditions is more challenging when using Ni as opposed to Pt [11,12] .…”

Section: Introductionmentioning

confidence: 99%

Enhanced Dry Reforming of Methane Catalysis by Ni at Heterointerfaces between Thin MgAlO_x and Bulk ZrO₂

et al. 2023

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The catalytic performance of supported metals is greatly influenced by the interaction with the support material. The role of the support becomes even more important when dealing with metal nanoparticles and high reaction temperatures. Herein, we show that interfacial sites between two metal oxides, MgAlOx and ZrO2 can bestow high stability as well as enhanced reactivity to nickel (Ni) nanoparticles. We use the MgAlOx as thin oxides on an underlying bulk ZrO2. We demonstrate the effect of the metal‐support interactions (MSI) in different support locations on the performance in dry reforming of methane (DRM). We find that the rate of DRM catalysis produces a concave‐down trend with respect to Ni loading with a maximum at ~0.8‐1.1%wt Ni. Measuring the Ni2p3/2 binding energy (BE), we find a similar concave‐down trend whereas for the Mg2p BE we find a concave‐up trend with respect to the Ni loading both with the maximum and minimum centered at 0.8‐1.1 %wt Ni, respectively. These trends were correlated with the stability of Ni calculated by DFT. Overall, our results suggest that heterointerfacial sites can be used to tailor moderate MSI, which can be used in the design of DRM catalyst with significantly increased activity and high stability.

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“…21 Due to the similar structure of Fe x O and MgO, which both have a face-centered cubic structure and similar lattice parameters, it is also easy to form a solid solution. 22,23 Most Fe x O peaks overlapped with MgO peaks, so it is difficult to distinguish the diffraction peaks of Fe x O, MgO and Mg 1− x Fe x O. 24 The strongest diffraction peak of Fe x O was the diffraction peak corresponding to the crystal plane of Fe x O (200) near 42.7°, but it overlapped with the diffraction peak of the MgO support.…”

Section: Resultsmentioning

confidence: 99%

How reduction temperature affects the properties of carbon nanotubes growing over the Fe–MgO/Al₂O₃catalyst

Yan

Zhang

et al. 2023

New J. Chem.

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Influence of reduction temperature on Ni particle size and catalytic performance of Ni/Mg(Al)O catalyst for CO2 reforming of CH4

Cited by 33 publications

References 68 publications

Syngas production employing nickel on alumina‐magnesia supported catalyst via dry methane reforming

Syngas production employing nickel on alumina‐magnesia supported catalyst via dry methane reforming

Enhanced Dry Reforming of Methane Catalysis by Ni at Heterointerfaces between Thin MgAlO_x and Bulk ZrO₂

How reduction temperature affects the properties of carbon nanotubes growing over the Fe–MgO/Al₂O₃catalyst

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Influence of reduction temperature on Ni particle size and catalytic performance of Ni/Mg(Al)O catalyst for CO2 reforming of CH4

Cited by 33 publications

References 68 publications

Syngas production employing nickel on alumina‐magnesia supported catalyst via dry methane reforming

Syngas production employing nickel on alumina‐magnesia supported catalyst via dry methane reforming

Enhanced Dry Reforming of Methane Catalysis by Ni at Heterointerfaces between Thin MgAlOx and Bulk ZrO2

How reduction temperature affects the properties of carbon nanotubes growing over the Fe–MgO/Al2O3catalyst

Contact Info

Product

Resources

About

Enhanced Dry Reforming of Methane Catalysis by Ni at Heterointerfaces between Thin MgAlO_x and Bulk ZrO₂

How reduction temperature affects the properties of carbon nanotubes growing over the Fe–MgO/Al₂O₃catalyst