Monometallic Copper Catalysts for the Hydrogenation of 5-Hydroxymethylfurfural

Редина, Е. А.; Виканова, К. В.; Капустин, Г. И.

doi:10.1134/s0036024420120250

Cited by 6 publications

(4 citation statements)

References 23 publications

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“…Based on the above experimental data and literature reports, authors concluded that electrophilic Cu 2+ species assisted the adsorption and activation of the HMF carbonyl group, which then was followed by hydrogenation reaction induced by metallic Cu 0 using the dissociated hydrogen on its surface. The importance of simultaneous presence of metallic and oxidized Cu species for selective HMF hydroconversion towards BHMF was also confirmed by Kapustin and co‐workers [38] . Copper catalysts supported on CeO 2 −ZrO 2 were synthesized via deposition‐precipitation with urea.…”

Section: Catalytic Hydroconversion Of Hmfmentioning

confidence: 68%

“…The importance of simultaneous presence of metallic and oxidized Cu species for selective HMF hydroconversion towards BHMF was also confirmed by Kapustin and co-workers. [38] Copper catalysts supported on CeO 2 À ZrO 2 were synthesized via deposition-precipitation with urea. Study of the phase composition of 3 % Cu/CeO 2 À ZrO 2 catalysts obtained using different amounts of precipitant (urea) showed that this parameter can noticeably alter the catalysts phase composition.…”

Section: 5-bis(hydroxymethyl)furanmentioning

confidence: 99%

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Catalytic Hydroconversion of 5‐HMF to Value‐Added Chemicals: Insights into the Role of Catalyst Properties and Feedstock Purity

2022

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BHMF), 2,5-bishydroxymethyltetrahydrofuran (BHMTHF), and 2,5-dimethyltetrahydrofuran (DMTHF). In addition, multifunctional catalytic systems that enable a tunable production of various HMF derived intermediates are discussed. Within this chemistry, the surprising impact of HMF purity on the catalytic performance, such as selectivity and activity, during its upgrading is highlighted. Lastly, the remaining challenges in the field of HMF hydroconversion to the mentioned chemicals are summarized and discussed, taking into account the knowledge gain of catalyst properties and feedstock purity.

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Section: Catalytic Hydroconversion Of Hmfmentioning

confidence: 68%

Section: 5-bis(hydroxymethyl)furanmentioning

confidence: 99%

Catalytic Hydroconversion of 5‐HMF to Value‐Added Chemicals: Insights into the Role of Catalyst Properties and Feedstock Purity

2022

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“…In addition, Ce 3 + /Ce 4 + may also serve as sites for nitro group and imine group adsorption and activation. 5-HMF can also adsorb on Cu + /Cu 2 + [8] and Ce 3 + /Ce 4 + sites [46,58] (not shown in the scheme). Then, part of adsorbed aniline (presumably at Cu + site [59] ) reacts with 5-HMF to form adsorbed imine, other part of formed primary amine desorbs and reacts further with 5-HMF in solution.…”

Section: Chemcatchemmentioning

confidence: 99%

Ceria‐Modified Copper Phyllosilicate Catalyst for One‐Pot Hydroamination of 5‐HMF with Nitro‐Compounds

et al. 2023

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Ceria‐modified mineral‐like copper catalyst 12 %Cu/SiO2−CeO2 showed a high activity and selectivity in one‐pot hydroamination of bio‐available 5‐hydroxymethylfurfural with nitro‐aromatic compounds. The catalyst was obtained by conventional deposition‐precipitation method with urea from commercial silica, copper nitrate, and ammonium cerium (IV) nitrate. The synthesized catalyst with a copper phyllosilicate structure formed inside the pores of silica was studied by XRD, N2 adsorption, XPS, SEM and TEM methods. The possible scheme of 5‐hydroxymethylfurfural hydroamination with nitro‐aromatic compounds and an evolution of the catalyst structure during the reaction were proposed. The catalyst can be successfully recycled after calcination procedure. A number of N‐furfurylamines were obtained for the first time over 12 %Cu/SiO2−CeO2 catalyst with the phyllosilicate structure directly from 5‐hydroxymethylfurfural and nitro‐aromatic compounds with the yields up to 85 %.

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“…Cu-and Co-containing monometallic catalysts are widely known for their hydrogenating properties, high activity, and low cost [15]. However, there is a significant sintering of metal particles during the reaction in these systems, along with high activity.…”

Section: Introductionmentioning

confidence: 99%

CuCoMgAlOx Mixed Oxides as Selective Catalysts for the Hydrogenation of Furan Compounds

Kobzar,

Stepanova,

Nepomniashchii

et al. 2023

Hydrogen

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Single phase CuCoMgAl-layered hydroxides were obtained by making fine adjustment to their composition through changing the (Co + Cu)/Mg = 0.5; 1; 2; 3 and Co/Cu = 0.5; 1; 2 ratios. The rise of Co/Cu in systems contributed to the increase in their thermal stability. CuCoMgAl-catalysts showed high selectivity of carbonyl group hydrogenation in furfural and 5-hydroxymethylfurfural. In furfural hydrogenation, the selectivity to furfuryl alcohol was more than 99%, and in 5-hydroxymethylfurfural hydrogenation, the selectivity to 2,5-hydroxymethyl furfural was 95%. The surface of the samples with different Co/Cu after calcination and reduction was the same and had a «core-shell» structure (TEM). «Core» consisted of Cu and Co metallic particles. «Shell» consisted of CuCoMgAlOx mixed no-stoichiometric spinel oxides. There was no sintering or change in size of the metallic particles after the reaction. For the sample with Co/Cu = 1, their phase composition after reaction remained unchangeable. The increase of Co/Cu led to the formation of an X-ray amorphous phase after the reaction. This suggests the decrease in structural stability of this sample. The obtained results prove the prospects of using bimetallic CoCu-systems for hydrogenation of furan aldehydes, and opens up new directions for further research and improvement.

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Monometallic Copper Catalysts for the Hydrogenation of 5-Hydroxymethylfurfural

Cited by 6 publications

References 23 publications

Catalytic Hydroconversion of 5‐HMF to Value‐Added Chemicals: Insights into the Role of Catalyst Properties and Feedstock Purity

Catalytic Hydroconversion of 5‐HMF to Value‐Added Chemicals: Insights into the Role of Catalyst Properties and Feedstock Purity

Ceria‐Modified Copper Phyllosilicate Catalyst for One‐Pot Hydroamination of 5‐HMF with Nitro‐Compounds

CuCoMgAlOx Mixed Oxides as Selective Catalysts for the Hydrogenation of Furan Compounds

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