Influence of the nature of the support on the reducibility and catalytic properties of nickel: evidence for a new type of metal support interaction

Turlier, P.; Praliaud, H.; Moral, P.; Martin, G.A.; Dalmon, J.A.

doi:10.1016/s0166-9834(00)81751-0

Cited by 94 publications

(33 citation statements)

References 21 publications

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“…In the case of the ceria supported non-noble metal catalysts, both conventional impregnation techniques (16,32,264,292) and precipitation of the metal precursor onto the ceria support have been used (43). Some Pa7Ce0 2 catalysts have also been prepared in the latter way (284,293).…”

Section: Reactionmentioning

confidence: 99%

“…If so, the decrease of the H(CO)/M values cannot be unequivocally interpreted as due to metal sintering or to the existence of a true metal/support interaction effect. In spite of its likely relevance in mean/high surface area catalysts, information about their textural evolution with T^ is often lacking (64,72,138,179,221,264).…”

Section: Study Of the H 2 And Co Interaction With M/ce0 2 And Relatedmentioning

confidence: 99%

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Chemical and Nanostructural Aspects of the Preparation and Characterisation of Ceria and Ceria-Based Mixed Oxide-Supported Metal Catalysts

Bernal

Calvino

Gatica

et al. 2002

Catalysis by Ceria and Related Materials

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Section: Reactionmentioning

confidence: 99%

Section: Study Of the H 2 And Co Interaction With M/ce0 2 And Relatedmentioning

confidence: 99%

Chemical and Nanostructural Aspects of the Preparation and Characterisation of Ceria and Ceria-Based Mixed Oxide-Supported Metal Catalysts

Bernal

Calvino

Gatica

et al. 2002

Catalysis by Ceria and Related Materials

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“…The formation of these products is related to the addition of less noble transition metal promoters [3][4][5][6][7][8][9][10][11][12]. The addition of a vanadium compound has been shown to increase both the activity and selectivity for the formation of ethanal and ethanol [13][14][15][16][17][18]. Although the direct formation of these products from synthesis gas is not of economical interest, due to the low activity of the catalyst, the role of the promoter is of great fundamental interest [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

CO scrambling with reactive oxygen species on vanadium promoted rhodium catalysts

et al. 1992

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Well reduced silica-supported rhodium catalysts contain oxygen species that are able to participate in reactions. Adsorbed CO molecules were demonstrated to exchange their oxygen atoms with oxygen atoms from these catalysts. The amount of such reactive oxygen is increased by a vanadium promoter. Using infrared adsorption, the scrambling of 13clSo to 13C160 was studied as a function of the temperature. The vanadium promoter decreases the temperature for CO scrambling. Linear adsorbed CO is the preferred initial state for this process.

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“…For years, strengthening the metal–support interactions (MSI) has been the cornerstone of research to prevent deactivation resulting from particle agglomeration. Thereby, particular attention has been devoted to study the role of the nature of the support, the nickel impregnation method, the thermal treatments, and the addition of promoters on sintering. Among these different strategies, Burattin et al .…”

Section: Introductionmentioning

confidence: 99%

Highly Dispersed Nickel Particles Encapsulated in Multi‐hollow Silicalite‐1 Single Crystal Nanoboxes: Effects of Siliceous Deposits and Phosphorous Species on the Catalytic Performances

et al. 2017

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Multi‐hollow silicalite‐1 single crystals (MH) were prepared for the first time by an original synthesis pathway by using tetrabutylphosphonium hydroxide (TBPOH) as a mild desilicating agent. This new generation of hierarchical zeolite allowed the encapsulation of nanoparticles (NPs) featuring an enhanced confinement of the metallic guest and a thin wall thickness. The MH catalyst exhibited a better stability for methane steam reforming at 700 °C than a single‐hollow counterpart (SH). Ni average particle size could be kept lower than 4 nm after 20 h on stream for the MH sample. However, a detailed analysis of kinetic data of the structure‐insensitive CO methanation used as a model reaction revealed that the sample activity was adversely affected by two main factors deriving from the preparation steps. First, a siliceous over‐layer derived from the decomposition of intermediate Ni phyllosilicates, which partly covered the resulting Ni nanoparticles. Second, phosphorus from the templates remained in the samples, probably forming a Ni–P compound upon reduction. The overall catalytic activities observed here were therefore a complex interplay of improved dispersion and poisonous effects.

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Influence of the nature of the support on the reducibility and catalytic properties of nickel: evidence for a new type of metal support interaction

Cited by 94 publications

References 21 publications

Chemical and Nanostructural Aspects of the Preparation and Characterisation of Ceria and Ceria-Based Mixed Oxide-Supported Metal Catalysts

Chemical and Nanostructural Aspects of the Preparation and Characterisation of Ceria and Ceria-Based Mixed Oxide-Supported Metal Catalysts

CO scrambling with reactive oxygen species on vanadium promoted rhodium catalysts

Highly Dispersed Nickel Particles Encapsulated in Multi‐hollow Silicalite‐1 Single Crystal Nanoboxes: Effects of Siliceous Deposits and Phosphorous Species on the Catalytic Performances

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