Ni–Fe/Mg(Al)O alloy catalyst for carbon dioxide reforming of methane: Influence of reduction temperature and Ni–Fe alloying on coking

Wan, Chunsheng; Song, Kai; Pan, Jian; Huang, Min; Luo, Ruizhi; Li, Dalin; Jiang, Lilong

doi:10.1016/j.ijhydene.2020.09.129

Cited by 39 publications

(16 citation statements)

References 57 publications

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“…The formation of bimetallic nickel‐based catalyst by alloying with a base metal (Fe, Cu, Co etc.) is an interesting development [37–42] . These systems are demonstrated for hydrodeoxygenation of oxygen‐rich bio‐oil with high coke resistance properties similar to that of bimetallic nickel – noble metal catalyst.…”

Section: Introductionmentioning

confidence: 99%

“…The superior catalytic performance and high cokeresistant properties of these bimetallic catalysts are ascribable to the synergy between Ni and the Pt group metal. [37][38][39][40][41] Among platinum group metals, ruthenium is the least expensive and known to promote HDO efficiently. The bimetallic Ru-Ni system demonstrated superior catalytic behavior for the HDO of guaiacol, [39] eugenol, [40] and furfural [41] compared to monometallic nickel-based catalysts.…”

Section: Introductionmentioning

confidence: 99%

“…is an interesting development. [37][38][39][40][41][42] These systems are demonstrated for hydrodeoxygenation of oxygen-rich bio-oil with high coke resistance properties similar to that of bimetallic nickel -noble metal catalyst.…”

Section: Introductionmentioning

confidence: 99%

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Hydrodeoxygenation of Anisole by Using a Ruthenium‐Containing Nickel‐Iron Hydrotalcite‐Based Catalyst

Aswin

Sreenavya

Venkatesha³

et al. 2022

ChemistrySelect

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Ruthenium-loaded nickel-iron (NiÀ Fe) hydrotalcite materials were synthesized via the co-precipitation method. The physicochemical properties of the synthesized materials were characterized by spectroscopic and analytical methods. The highly crystalline nature of NiÀ Fe HT (NiFe-0.5) hydrotalcite material was evident from powder XRD studies. The presence of uniformly dispersed ruthenium in its NiRu alloy form was evident from the TPR studies. The synthesized materials show promising catalytic performance for the hydrodeoxygenation (HDO) of anisole under ambient reaction conditions (190 °C, 20 bar H 2 ). The catalyst prepared with a nickel-to-iron molar ratio of 2 : 1 (NF0.5 A) exhibited a good hydrotalcite structure and moderate catalytic activity for the hydrotreatment of anisole. The catalytic activity was improved by the introduction of 4 wt. % ruthenium on the surface of NiÀ Fe hydrotalcite (NF0.5Ru), which shows 98 % anisole conversion with the selective formation of toluene as the major product. Catalytic activity remained for several consecutive runs. The recycled catalyst showed a similar conversion with the formation of toluene and methylcyclohexane as the major products. The variation in the selectivity might be due to the re-dispersion of NiÀ Ru active sites.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrodeoxygenation of Anisole by Using a Ruthenium‐Containing Nickel‐Iron Hydrotalcite‐Based Catalyst

Aswin

Sreenavya

Venkatesha³

et al. 2022

ChemistrySelect

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“…Furthermore, both hydrotalcites and the mixed metal oxides can exhibit abundant surface-tunable basic sites. [1,2] These features together have greatly broadened their applications in diverse fields as adsorbents, [3][4][5] ion-exchangers, [6][7][8] or catalyst carriers [9][10][11][12][13][14] and base catalysts. [15][16][17][18][19][20] Among the diverse families of the hydrotalcites, magnesium and alumina hydrotalcites are among the most widely studied materials in the literature.…”

Section: Introductionmentioning

confidence: 99%

“…[30] For instance, significantly different activities of hydrotalcites in the transesterification reactions have been reported by different research groups. [19,20] On the other hand, the hydrotalcites have been used as carriers for the metal supported catalysts [10][11][12][13][14] and in this case, the residual alkali metals might act as a promoter. In fact, the minute of alkali metals might significantly affect the electronic properties of the metal supported catalysts and thus their catalytic performance can be altered as well.…”

Section: Introductionmentioning

confidence: 99%

Revisiting the Structural Evolution of Hydrotalcite‐Derived Mixed Metal Oxides upon Alkali Metal Doping and Its Impact on Base Catalysis

Mou

et al. 2021

Eur J Inorg Chem

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The structural evolution of classic coprecipitation-derived MgÀ Al mixed oxide (MMO) upon doping of different alkali metals in a wide level (1-20 wt.%) was revisited. The pristine lateral MMO of aggregates into particulates, accompanied with the dramatic loss of the surface areas and the formation of aluminates. These phenomena become severer with the decrease of the atomic radius. The formation of NaAlO 2 likely occurs via the gradual dealumination of the MMO, which is highly dependent on both the dopant content and the activation temperature. This leads to ultimately a new ensemble with MgO as the core decorated by NaAlO 2 in the outer surfaces at high Na doping level and above 973 K. When evaluated in the base-catalyzed transesterification and acylation model reactions, the Na-doped MMO show enhanced performance and a plateau at increasing doping that might be explained by an interplay between the number and strength of strong basicity.

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A review on catalyst development for conventional thermal dry reforming of methane at low temperature

Zhou

Mahinpey

2023

Can J Chem Eng

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Carbon dioxide (CO 2 ) utilization and conversion, as one of the main parts of carbon capture, utilization, and storage (CCUS), is not only considered an important way to mitigate global warming but also an attractive industrial route to produce valuable fuels and chemical feedstocks. Catalytic dry reforming of methane (DRM) is a promising technology for carbon dioxide utilization and conversion as it can produce syngas, carbon monoxide (CO), and hydrogen (H 2 ) for widespread industrial production processes. In most studies of the DRM reaction, a relatively high operational temperature (i.e., >700 C) has been applied since the reactivity limitation of widely used Ni-based catalysts at low temperatures and the extremely endothermic property of the DRM reaction. However, high cost and high requirement of thermal stability for catalysts have become a severe problem impeding the further commercialization of DRM technology. Decreasing the operational temperature (i.e., <700 C) is considered a promising way for further application of the DRM route to convert CO 2 and produce syngas. However, traditional Ni-based catalysts suffered from unsatisfied reactivity and severe coke formation, leading to quick deactivation at low temperatures. Developing a catalyst with excellent catalytic activity, coke resistance, and improved thermal stability is necessary for low-temperature DRM reactions. In recent years, with significant development in materials, catalyst design, and computational simulation, some synthesized catalysts have achieved considerable improvement in catalytic performance in low-temperature DRM. Hence, a review of recent development on low-temperature DRM catalysts is provided here to further guide and profoundly understand catalyst design for low-temperature DRM.

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Ni–Fe/Mg(Al)O alloy catalyst for carbon dioxide reforming of methane: Influence of reduction temperature and Ni–Fe alloying on coking

Cited by 39 publications

References 57 publications

Hydrodeoxygenation of Anisole by Using a Ruthenium‐Containing Nickel‐Iron Hydrotalcite‐Based Catalyst

Hydrodeoxygenation of Anisole by Using a Ruthenium‐Containing Nickel‐Iron Hydrotalcite‐Based Catalyst

Revisiting the Structural Evolution of Hydrotalcite‐Derived Mixed Metal Oxides upon Alkali Metal Doping and Its Impact on Base Catalysis

A review on catalyst development for conventional thermal dry reforming of methane at low temperature

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