Mono- and bimetallic (Ru-Co) polymeric catalysts for levulinic acid hydrogenation

Grigorev, Maxim E.; Михаилов, С. П.; Быков, А. А.; Сидоров, А. И.; Tiamina, Irina Yu.; Vasiliev, A. L.; Nikoshvili, Linda Zh.; Matveeva, Valentina G.; Meneghetti, Simoni Margareti Plentz; Sulman, Mikhail G.

doi:10.1016/j.cattod.2020.11.023

Cited by 22 publications

(11 citation statements)

References 37 publications

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“…Ru/HAP contained small NP of RuO 2 (see the XPS data) of about 2-4 nm in diameter (Fig. 2c); however, these NP were located non-uniformly, mainly closer to the outer surface of the polymer granule, and tended to form road-like aggregates [25]. Fig.…”

Section: Catalyst Characterizationmentioning

confidence: 93%

Hydrogenation of a Benzene‐Toluene Mixture Using Metal Nanoparticles Stabilized by a Hyper‐Crosslinked Aromatic Polymer

et al. 2021

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Hydrogenation of aromatic compounds is a widely used catalytic process in modern industry. Selective hydrogenation of benzene (BZ)-toluene (TL) mixtures is an important industrial process as it allows the purification of BZ for further synthetic purposes. In this work, the hydrogenation of a BZ-TL mixture (at a molar ratio close to 1) was studied for varying reaction parameters (temperature in the range of 100-180 °C and pressure in the range of 1-7 MPa) using Pt-, Pd-, and Ru-containing nanoparticles stabilized by an amino-functionalized hyper-crosslinked aromatic polymer (HAP). Among the synthesized catalytic systems, Ru/HAP containing ruthenium(IV) oxide was shown to be the most active and selective one, allowing 44 % selectivity with respect to cyclohexane at nearly 100 % of BZ conversion.

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Section: Catalyst Characterizationmentioning

confidence: 93%

Hydrogenation of a Benzene‐Toluene Mixture Using Metal Nanoparticles Stabilized by a Hyper‐Crosslinked Aromatic Polymer

et al. 2021

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“…Pt NPs had mean diameter of 3.9 ± 1.7 nm, but also a lot of aggregates with diameters up to 11 nm and higher ( Figure 14 a). The 2 wt.% Ru/HPS-NR 2 contained small NPs of RuO 2 of about 2–4 nm in diameter ( Figure 14 c), which were located nonuniformly, closer to the outer surface of the polymer granule [ 39 ]. See also Figure 14 d, where light regions correspond to RuO 2 (the average content of elements calculated via EDX is the following: carbon 34%, oxygen 41%, ruthenium 25%).…”

Section: Methodsmentioning

confidence: 99%

Noble Metal Nanoparticles Stabilized by Hyper-Cross-Linked Polystyrene as Effective Catalysts in Hydrogenation of Arenes

et al. 2021

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This work is addressing the arenes’ hydrogenation—the processes of high importance for petrochemical, chemical and pharmaceutical industries. Noble metal (Pd, Pt, Ru) nanoparticles (NPs) stabilized in hyper-cross-linked polystyrene (HPS) were shown to be active and selective catalysts in hydrogenation of a wide range of arenes (monocyclic, condensed, substituted, etc.) in a batch mode. HPS effectively stabilized metal NPs during hydrogenation in different medium (water, organic solvents) and allowed multiple catalyst reuses.

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“…However, on every sample, it was possible to verify a subtle onset Hypercrosslinked polystyrenes (HPS), or functionalized polystyrenes (such as aminefunctionalized), are useful in the stabilization of metallic nanoparticles and clusters [22][23][24][25]. The stabilization of nanoparticles is vital for the production of ruthenium mono and bimetallic catalysts applicable in biorefinery processes, such as the oxidation and hydrogenation of glucose, the hydrogenolysis of cellulose, on Suzuki cross-coupling and on the lactic acid hydrogenation [26][27][28].…”

Section: Catalyst Characterizationmentioning

confidence: 99%

Doped Ruthenium/Hypercrosslinked Polystyrene (HPS) Catalysts in the Modification of Fatty Acid Methyl Esters

et al. 2023

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The modification of fatty substrates using heterogeneous catalysts have extensive industrial application and has an emphatic position in a sustainable context. Herein ruthenium, nickel, cobalt and copper-doped ruthenium, supported on hypercrosslinked polystyrene (HPS) catalysts were prepared by wet impregnation, characterized and applied on the modification of canola fatty acid methyl esters (FAME). The characterization showed a dispersive effect of doping metals over the ruthenium particles, the presence of acid sites and overall surface morphology, which allows targeting potential applications. The chosen modifications consisted of hydrogenation, hydroformylation, oxidative cleavage and deoxygenation, resulting in superb catalytic activities of over 99% conversions for hydrogenation and deoxygenation. The simplicity of the canola FAME composition allows the understanding of the catalytic processes and allows the upscale of more complex FAME matrixes. Finally, the obtained data stimulates further optimization studies for each application with a variation on the catalysts and the usage of residual fatty substrates, greatly enhancing the sustainability profile of the systems.

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Mono- and bimetallic (Ru-Co) polymeric catalysts for levulinic acid hydrogenation

Cited by 22 publications

References 37 publications

Hydrogenation of a Benzene‐Toluene Mixture Using Metal Nanoparticles Stabilized by a Hyper‐Crosslinked Aromatic Polymer

Hydrogenation of a Benzene‐Toluene Mixture Using Metal Nanoparticles Stabilized by a Hyper‐Crosslinked Aromatic Polymer

Noble Metal Nanoparticles Stabilized by Hyper-Cross-Linked Polystyrene as Effective Catalysts in Hydrogenation of Arenes

Doped Ruthenium/Hypercrosslinked Polystyrene (HPS) Catalysts in the Modification of Fatty Acid Methyl Esters

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