Synthesis and characterization of bimetallic catalysts Pd-Ru and Pt-Ru supported on γ-alumina and zeolite FAU for the catalytic transformation of HMF

Pérez-Bustos, Héctor Fabio; Lucio–Ortiz, Carlos J.; Rosa, Javier Rivera De la; Río, David A. De Haro Del; Sandoval-Rangel, Ladislao; Martínez-Vargas, Daniela Xulú; Maldonado, Carolina Solís; Rodríguez-González, Vicente; Garza-Navarro, Marco A.; Morales, F.

doi:10.1016/j.fuel.2018.10.001

Cited by 54 publications

(32 citation statements)

References 32 publications

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“…The reduction curve of 2%Pt/NZ catalyst shows reduction effects attributed to the reduction of the carrier itself and PtO 2 through PtO to metallic Pt. The same result was observed also by other authors [ 42 , 45 ]. The reduction profile of 2%Ru/NZ catalyst shows the reduction stages assigned to the reduction of iron oxide species and RuO 2 to metallic Ru through RuO.…”

Section: Resultssupporting

confidence: 92%

“…This hydride phase can decompose when the temperature increases above 70 °C and released molecular hydrogen generates a desorption peak on the TPR profile [ 39 , 40 ]. The second reduction stage with the maximum of hydrogen consumption peak is attributed to the reduction of PdO to metallic Pd [ 41 , 42 ]. The reduction profile of 2%Ag/NZ catalyst showed the reduction peaks assigned to the reduction of the same oxidic species which were observe in the case of the carrier itself as well as the effect assigned to the reduction of Ag 2 O.…”

Section: Resultsmentioning

confidence: 99%

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Biodiesel Production on Monometallic Pt, Pd, Ru, and Ag Catalysts Supported on Natural Zeolite

et al. 2020

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Biodiesel production from rapeseed oil and methanol via transesterification reaction facilitated by various monometallic catalyst supported on natural zeolite (NZ) was investigated. The physicochemical characteristics of the synthesized catalysts were studied by X-ray diffraction (XRD), Brunauer–Emmett–Teller method (BET), temperature-programmed-reduction in hydrogen (H2-TPR), temperature-programmed-desorption of ammonia (NH3-TPD), Scanning Electron Microscope equipped with EDX detector (SEM-EDS), and X-ray photoelectron spectroscopy (XPS) methods. The highest activity and methyl ester yields were obtained for the Pt/NZ catalyst. This catalyst showed the highest triglycerides conversion of 98.9% and fatty acids methyl esters yields of 94.6%. The activity results also confirmed the high activity of the carrier material (NZ) itself in the investigated reaction. Support material exhibited 90.5% of TG conversion and the Fatty Acid Methyl Esters yield (FAME) of 67.2%. Introduction of noble metals improves the TG conversion and FAME yield values. Increasing of the metal loading from 0.5 to 2 wt.% improves the reactivity properties of the investigated catalysts.

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Section: Resultssupporting

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Biodiesel Production on Monometallic Pt, Pd, Ru, and Ag Catalysts Supported on Natural Zeolite

et al. 2020

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“…Nevertheless, the support plays a key role during the reaction providing superior surface area and contributing to the catalyst dispersion [18]. Noble metals such as Pd, Ru and Pt have been widely used in catalytic reactions due to its chemical and structural stability along with electronic properties, noble metals allow to achieve high catalytic activities at less extreme conditions than with other transition metals [19] [20]. Zeolites have a broad range of applications, particularly in heterogeneous catalysis as catalyst supports and have demonstrated to be a very versatile material with remarkable properties such as porosity, acidity and surface area.…”

Section: Introductionmentioning

confidence: 99%

Catalytic conversion of 5-hydroxymethylfurfural (5-HMF) over Pd-Ru/FAU zeolite catalysts

et al. 2021

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“…Transformation of HMF to DMF is scientifically an interesting reaction with a complex reaction network and this reaction has been intensively studied [14–62] . In the first step HMF is hydrogenated to BHMF followed by its hydrogenolysis to methylfurfuryl alcohol (MFA) and further hydrogenolyses to DMF.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Hydrogenation/Hydrogenolysis of 5‐Hydroxymethylfurfural to 2,5‐Dimethylfuran

2020

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Recent developments in transformations of biobased 5hydroxymethylfurfural to 2,5-dimethylfuran, a potential liquid fuel, are critically summarized. The highest yield of 2,5-dimethylfuran (more than 98 %) from 5-hydroxymethylfurfural are obtained over bimetallic CuÀ Co supported on carbon at 180°C under 5 bar hydrogen in 2-propanol and over Ni supported on mesoporous carbon at 200°C under 30 bar hydrogen in water in a batch reactor. The desired catalyst should have relatively high metal dispersion and some acidity to facilitate both hydrogenation and hydrogenolysis. However, overhydrogenation and overhydrogenolysis forming 2,5-dimeth-yltetrahydrofuran and methylfuran, respectively, should be suppressed. Furthermore, a hydrophobic support is more selective than oxide-based support. After a careful adjustment of the residence time in a continuous reactor it is also possible to produce high yields of 2,5-dimethylfuran even over Pt/C. The main challenges limiting the industrial feasibility of these reactions are relatively low initial reactant concentration, catalyst deactivation by sintering, leaching and coking. In addition to selection of optimum reaction conditions and catalyst properties, kinetic modelling was also summarized.

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Synthesis and characterization of bimetallic catalysts Pd-Ru and Pt-Ru supported on γ-alumina and zeolite FAU for the catalytic transformation of HMF

Cited by 54 publications

References 32 publications

Biodiesel Production on Monometallic Pt, Pd, Ru, and Ag Catalysts Supported on Natural Zeolite

Biodiesel Production on Monometallic Pt, Pd, Ru, and Ag Catalysts Supported on Natural Zeolite

Catalytic conversion of 5-hydroxymethylfurfural (5-HMF) over Pd-Ru/FAU zeolite catalysts

Catalytic Hydrogenation/Hydrogenolysis of 5‐Hydroxymethylfurfural to 2,5‐Dimethylfuran

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