Aqueous phase hydrogenation of furfural to furfuryl alcohol over Pd–Cu catalysts

Fulajtárová, Katarína; Soták, Tomáš; Hronec, Milan; Vávra, I.; Dobročka, Edmund; Omastová, Mária

doi:10.1016/j.apcata.2015.05.031

Cited by 237 publications

(172 citation statements)

References 37 publications

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“…Therefore, the almost complete reduction of Ni observed in the bimetallic catalysts demonstrates a close interaction with Cu, which is consistent with the formation of an alloy. It should be noted that lower temperature hydrogen consumption peaks of metal oxide have been obtained by using acidtreatment CNTs as support, compared to a-Al 2 O 3 [44], MgO [45], SiO 2 [46]. This interesting reduction behavior of metal oxide catalysts supported on MWCNTs was studied by Song and Jiang [47].…”

Section: Resultsmentioning

confidence: 94%

Selective hydrogenation of furfural to tetrahydrofurfuryl alcohol over Ni/CNTs and bimetallic Cu Ni/CNTs catalysts

Liu

Chen

2016

International Journal of Hydrogen Energy

151

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Section: Resultsmentioning

confidence: 94%

Selective hydrogenation of furfural to tetrahydrofurfuryl alcohol over Ni/CNTs and bimetallic Cu Ni/CNTs catalysts

Liu

Chen

2016

International Journal of Hydrogen Energy

151

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“…The Cu 2p spectra obtained from all samples displayed two distinctive peaks at 934.5 ± 0.2 eV and 932.7 ± 0.2 eV (Figure S6). The former is the signature binding energy of Cu 2+ species and the later can be inferred to either Cu + or Cu 0 species because the binding energies of Cu + and Cu 0 cannot be distinguished by XPS analysis . It was obvious that an increase in calcination temperature or calcination time can lead to binding energy intensities attributing to Cu 2+ and Cu + /Cu 0 species respectively decrease and increase, indicating a progressive reduction process.…”

Section: Resultsmentioning

confidence: 99%

Efficient Synthesis of 2-Methylfuran from Bio-Derived Furfural over Supported Copper Catalyst: The Synergistic Effect of CuO_x and Cu

et al. 2017

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Transforming biomass into value‐added chemicals will reduce our reliance to fossil resources. This work reports the development of an activated carbon (AC) supported Cu‐based catalyst (Cu/AC) capable of efficiently convert bio‐derived furfural (FAL) into 2‐methylfuran (2‐MF), a valuable chemical and bio‐fuel. The Cu/AC catalyst was synthesized by a facile ultrasound‐assisted impregnation method with the aid of the reduction property of active carbon. The effect of synthetic conditions was investigated. It was found that the best performed catalyst (Cu/AC‐400/2) can be obtained from 2 h calcination at 400 °C. With Cu/AC‐400/2 as the catalyst, an almost 100% yield of 2‐MF can be obtained within 4 h under 170 °C reaction temperature and 3 MPa H2 pressure. Experimental evidence suggested that FAL was catalytically converted into 2‐MF via the formation of furfuryl alcohol (FOL) intermediate. Extensive characterization results indicated that the superior catalytic performance of Cu/AC‐400/2 catalyst could be attributed to the uniform sized and well dispersed Cu nanoparticles (NPs) with optimal proportions of Cu2+, Cu0 and Cu+ embedded on large surface area porous active carbon. Cycling test proved the synthesized catalyst could be reutilized during successive catalytic cycles because of Cu NPs distributed uniformly on the AC surface and the weak interaction between copper and support.

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“…[1][2][3] Palladium is one of the most studied metal catalysts in furfural hydrogenation due to its high reactivity. [4][5] Various valuable chemicals including furfuryl alcohol, [6] tetrahydrofuran, [7] 2-methyltetrahydrofuran, [8] cyclopentanone, [9] and pentanediols, [10] could be selectively produced with Pdbased catalysts. One type of Pd-based catalysts commonly studied is CuÀ Pd bimetallic catalysts.…”

Section: Introductionmentioning

confidence: 99%

“…Previous research indicated Pd alloying with Cu exhibits higher reactivity, likely due to decreased interaction between furfural and metal sites and hydrogen transfer from Pd sites to Cu sites. [6,[11][12] Literature studies of the surface effects of supported CuÀ Pd bimetallic catalysts on furfural hydrogenation were summarized in the Supporting Information.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of Furfural Hydrogenation over Bimetallic Overlayer Catalysts and the Effect of Oxygen Vacancy Concentration on Product Selectivity

et al. 2019

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Furfural hydrogenation over silica‐supported Co@Pd and Cu@Pd bimetallic overlayer catalysts was studied in this work. Both overlayer catalysts showed enhanced reactivity compared to pure Pd in furfural hydrogenation. Langmuir‐Hinshelwood kinetic study revealed that this enhanced reactivity could be attributed to the decreased hydrogen surface coverage on catalyst surface of overlayer catalysts compared to pure Pd during reaction, releasing more available active sites for surface reaction or furfural adsorption to take place. The effect of oxygen vacancy concentration on furfural hydrogenation product selectivity was also studied. It is proposed that oxygen vacancies were crucial for both furfural hydrodeoxygenation and aromatic ring hydrogenation, depending on the concentration of oxygen vacancies. This work provides new perspective for tuning the furfural hydrogenation product selectivity by altering the oxygen vacancy concentration.

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Aqueous phase hydrogenation of furfural to furfuryl alcohol over Pd–Cu catalysts

Cited by 237 publications

References 37 publications

Selective hydrogenation of furfural to tetrahydrofurfuryl alcohol over Ni/CNTs and bimetallic Cu Ni/CNTs catalysts

Selective hydrogenation of furfural to tetrahydrofurfuryl alcohol over Ni/CNTs and bimetallic Cu Ni/CNTs catalysts

Efficient Synthesis of 2-Methylfuran from Bio-Derived Furfural over Supported Copper Catalyst: The Synergistic Effect of CuO_x and Cu

Kinetics of Furfural Hydrogenation over Bimetallic Overlayer Catalysts and the Effect of Oxygen Vacancy Concentration on Product Selectivity

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Aqueous phase hydrogenation of furfural to furfuryl alcohol over Pd–Cu catalysts

Cited by 237 publications

References 37 publications

Selective hydrogenation of furfural to tetrahydrofurfuryl alcohol over Ni/CNTs and bimetallic Cu Ni/CNTs catalysts

Selective hydrogenation of furfural to tetrahydrofurfuryl alcohol over Ni/CNTs and bimetallic Cu Ni/CNTs catalysts

Efficient Synthesis of 2-Methylfuran from Bio-Derived Furfural over Supported Copper Catalyst: The Synergistic Effect of CuOx and Cu

Kinetics of Furfural Hydrogenation over Bimetallic Overlayer Catalysts and the Effect of Oxygen Vacancy Concentration on Product Selectivity

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Efficient Synthesis of 2-Methylfuran from Bio-Derived Furfural over Supported Copper Catalyst: The Synergistic Effect of CuO_x and Cu