On the enhanced sulfur and coking tolerance of Ni-Co-rare earth oxide catalysts for the dry reforming of methane

Jiang, Changyi; Loisel, Emily; Cullen, David A.; Dorman, James; Dooley, Kerry M.

doi:10.1016/j.jcat.2020.11.028

Cited by 59 publications

(31 citation statements)

References 104 publications

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“…In this case, Ni-Co synergy could be a dominant factor. Moreover, the gradual decrease of H 2 /CO ratio suggested the more rapid deactivation of DRM than the RWGS reaction under a sulfur environment [90].…”

Section: Oxygen Defectsmentioning

confidence: 99%

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Modification Strategies of Ni-Based Catalysts with Metal Oxides for Dry Reforming of Methane

Gao

Wang

et al. 2022

Methane

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Syngas generated from the catalytic dry reforming of methane (DRM) enables the downstream production of H2 fuel and value-added chemicals. Ni-based catalysts with metal oxides, as both supports and promoters, are widely applied in the DRM reaction. In this review, four types of metal oxides with support confinement effect, metal-support interaction, oxygen defects, and surface acidity/basicity are introduced based on their impacts on the activity, selectivity, and stability of the Ni-based catalyst. Moreover, the structure–performance relationships are discussed in-depth. Finally, conclusive remarks and prospects are proposed.

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Section: Oxygen Defectsmentioning

confidence: 99%

“…ne 2022, 1, FOR PEER REVIEW 14 H2/CO ratio suggested the more rapid deactivation of DRM than the RWGS reaction under a sulfur environment [90].…”

Section: Surface Acidity/basicitymentioning

confidence: 99%

Modification Strategies of Ni-Based Catalysts with Metal Oxides for Dry Reforming of Methane

Gao

Wang

et al. 2022

Methane

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“…As an economic substitute, Ni-based catalysts have been studied extensively due to the low cost and comparable catalytic activity to noble metals [11,26]. A big drawback of Ni-based catalysts is that they are always suffering from rapid deactivation because of coking deposition and sintering of Ni nanoparticles [20,27,28].…”

Section: Introductionmentioning

confidence: 99%

Tuning Metal–Support Interactions on Ni/Al2O3 Catalysts to Improve Catalytic Activity and Stability for Dry Reforming of Methane

Ren

Yue

et al. 2021

Processes

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Ni-based catalysts supported on alumina derived from the pseudo-boehmite prepared by the impregnation method were employed for catalytic dry reforming of methane reaction at the temperature of 550–750 °C. The effect of calcination temperature on physicochemical properties such as the Ni dispersion, reduction degree, nickel crystallite sizes, and metal–support interaction of the catalysts was investigated. The characterization results show that increasing the catalyst calcination temperature leads to the formation of nickel-alumina spinel, which enhances the metal–support interaction and increases the reduction temperature. The nickel nanoparticle size decreases and the effective dispersion increases with the increasing calcination temperature from 450 °C to 750 °C due to the formation of nickel aluminate. The catalyst calcined at 750 °C exhibits the highest CH4 and CO2 conversion owing to the small Ni0 active sites and high Ni dispersion. In a 200 h stability test in dry reforming of methane at 700 °C, the Ni/Al2O3-750 catalyst exhibits excellent catalytic stability and anti-coking ability.

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“…The Co-Ni alloy catalysts show high activity not only at high temperatures but also at low temperatures, 116 high durability to carbon, and improved S tolerance. 117 Many reports have described the existence of an optimal Co/Ni ratio, but the value varies depending on the catalyst. In addition, in situ XPS, 116 and in situ scanning transmission X-ray microscopy (STXM) 118,119 studies have been conducted recently.…”

Section: Addition Of the Base Metal To Ni Catalystsmentioning

confidence: 99%

Effects of alloying for steam or dry reforming of methane: a review of recent studies

Torimoto

Sekine

2022

Catal. Sci. Technol.

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On the enhanced sulfur and coking tolerance of Ni-Co-rare earth oxide catalysts for the dry reforming of methane

Cited by 59 publications

References 104 publications

Modification Strategies of Ni-Based Catalysts with Metal Oxides for Dry Reforming of Methane

Modification Strategies of Ni-Based Catalysts with Metal Oxides for Dry Reforming of Methane

Tuning Metal–Support Interactions on Ni/Al2O3 Catalysts to Improve Catalytic Activity and Stability for Dry Reforming of Methane

Effects of alloying for steam or dry reforming of methane: a review of recent studies

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