Kinetic analysis of the conversion of aqueous erythritol solution on Ir/ReOx/TiO2 in a batch slurry reactor

Virgilio, Emanuel M.; Sad, M.E.; Padró, C.L.

doi:10.1016/j.apcata.2022.118691

Cited by 10 publications

(7 citation statements)

References 53 publications

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“…Metallic Re particles are inactivate for this reaction because of the loss of Lewis acidity. The synergy between metallic and oxide component for a variety of reactions dealing with derivatives from biomass because those catalytic transformations usually involve the hydrogenolysis or hydrodeoxygenation reactions. − …”

Section: Catalytic Applications Of Bimetallic Nanoparticlesmentioning

confidence: 99%

Bimetallic Sites for Catalysis: From Binuclear Metal Sites to Bimetallic Nanoclusters and Nanoparticles

2023

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Heterogeneous bimetallic catalysts have broad applications in industrial processes, but achieving a fundamental understanding on the nature of the active sites in bimetallic catalysts at the atomic and molecular level is very challenging due to the structural complexity of the bimetallic catalysts. Comparing the structural features and the catalytic performances of different bimetallic entities will favor the formation of a unified understanding of the structure−reactivity relationships in heterogeneous bimetallic catalysts and thereby facilitate the upgrading of the current bimetallic catalysts. In this review, we will discuss the geometric and electronic structures of three representative types of bimetallic catalysts (bimetallic binuclear sites, bimetallic nanoclusters, and nanoparticles) and then summarize the synthesis methodologies and characterization techniques for different bimetallic entities, with emphasis on the recent progress made in the past decade. The catalytic applications of supported bimetallic binuclear sites, bimetallic nanoclusters, and nanoparticles for a series of important reactions are discussed. Finally, we will discuss the future research directions of catalysis based on supported bimetallic catalysts and, more generally, the prospective developments of heterogeneous catalysis in both fundamental research and practical applications.

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Section: Catalytic Applications Of Bimetallic Nanoparticlesmentioning

confidence: 99%

Bimetallic Sites for Catalysis: From Binuclear Metal Sites to Bimetallic Nanoclusters and Nanoparticles

2023

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“…The TiO 2 support has also been proposed to have a role in the suppression of the overreduction of Re species, leading to the interaction between an erythritol molecule and catalytic active site. 220,221 Fig. 27 shows the conversion and selectivity as a function of reaction time for erythritol hydrogenolysis over Ir-ReO x /rutile TiO 2 (4 wt% Ir, Re/Ir = 0.25) at 353 K. 222 The reaction temperature (353 K) for the Ir-ReO x catalyst was clearly lower than that (453 K) for the Cu catalyst, which was due to the very high activity of Ir-ReO x catalysts for C-O hydrogenolysis of various polyfunctionalized compounds such as sugars, 223,224 sugar alcohols, 222,[225][226][227] and cyclic ones.…”

Section: Hydrogenolysis Of Erythritol As a Variant Of Glycerolmentioning

confidence: 99%

“…The TiO 2 support has also been proposed to have a role in the suppression of the over-reduction of Re species, leading to the interaction between an erythritol molecule and catalytic active site. 220,221…”

Section: Erythritol and 14-anhydroerythritol (14-ahery)mentioning

confidence: 99%

Hydrodeoxygenation of potential platform chemicals derived from biomass to fuels and chemicals

et al. 2022

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“…As presented in Figure , from the results obtained over Fe 1 Co and Fe 3 Co, the conversion of malic acid decreased with the increase of its concentration in ethanol solution, while the selectivity of pyruvic acid at a concentration of malic acid of 5% has higher values as compared to other two concentrations. A decrease in the conversion of malic acid to an increase in its ethanol concentration would be explained by the availability of a larger amount of substrate, while the active sites were kept constant …”

Section: Resultsmentioning

confidence: 99%

Identification of Active Sites and the Mechanism of Reaction for Malic Acid Conversion over Iron-Doped Co₃O₄ Catalysts

Mitran

Jinga

Popescu-Pelin

et al. 2022

Ind. Eng. Chem. Res.

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The oxidative dehydrogenation/decarboxylation of biomass-derived malic acid for production of value-added chemicals, such as pyruvic or acetic acid, could be a promising alternative to utilize malic acid and to satisfy the demand of pyruvic acid as a source of essential aminoacids. We report a comparative study of iron-doped Co 3 O 4 samples for malic acid oxidative dehydrogenation/ decarboxylation to selective production of pyruvic and acetic acid. It should be noted that the presence of a larger amount of tetrahedral sites leads to a high selectivity toward pyruvic acid, while in the presence of octahedral sites, the further conversion of pyruvic acid to acetic acid occurs. Also, the presence of octahedral sites allows transformation of intermediary malonic acid into acetic acid, with a high rate.

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Kinetic analysis of the conversion of aqueous erythritol solution on Ir/ReOx/TiO2 in a batch slurry reactor

Cited by 10 publications

References 53 publications

Bimetallic Sites for Catalysis: From Binuclear Metal Sites to Bimetallic Nanoclusters and Nanoparticles

Bimetallic Sites for Catalysis: From Binuclear Metal Sites to Bimetallic Nanoclusters and Nanoparticles

Hydrodeoxygenation of potential platform chemicals derived from biomass to fuels and chemicals

Identification of Active Sites and the Mechanism of Reaction for Malic Acid Conversion over Iron-Doped Co₃O₄ Catalysts

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Kinetic analysis of the conversion of aqueous erythritol solution on Ir/ReOx/TiO2 in a batch slurry reactor

Cited by 10 publications

References 53 publications

Bimetallic Sites for Catalysis: From Binuclear Metal Sites to Bimetallic Nanoclusters and Nanoparticles

Bimetallic Sites for Catalysis: From Binuclear Metal Sites to Bimetallic Nanoclusters and Nanoparticles

Hydrodeoxygenation of potential platform chemicals derived from biomass to fuels and chemicals

Identification of Active Sites and the Mechanism of Reaction for Malic Acid Conversion over Iron-Doped Co3O4 Catalysts

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Product

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Identification of Active Sites and the Mechanism of Reaction for Malic Acid Conversion over Iron-Doped Co₃O₄ Catalysts