Exfoliated titanate, niobate and titanoniobate nanosheets as solid acid catalysts for the liquid-phase dehydration of d-xylose into furfural

Dias, Ana S.; Lima, Sérgio; Carriazo, Daniel; Rives, V.; Pillinger, Martyn; Valente, Anabela A.

doi:10.1016/j.jcat.2006.09.010

Cited by 188 publications

(154 citation statements)

References 28 publications

Supporting

Mentioning

143

Contrasting

Order By: Relevance

“…Therefore, the leaching of Nb could be excluded. These results were consistent with the reports on the dehydration of xylose over microporous and mesoporous niobium silicates [52], mesoporous niobium phosphate [53], and niobate and titanoniobate nanosheets [54].…”

Section: Stability Of Nbp Catalystsupporting

confidence: 93%

Dehydration of xylose to furfural over niobium phosphate catalyst in biphasic solvent system

Pholjaroen

Wang

et al. 2013

Journal of Energy Chemistry

View full text Add to dashboard Cite

Section: Stability Of Nbp Catalystsupporting

confidence: 93%

Dehydration of xylose to furfural over niobium phosphate catalyst in biphasic solvent system

Pholjaroen

Wang

et al. 2013

Journal of Energy Chemistry

View full text Add to dashboard Cite

“…Dehydration of xylose to furfural is investigated using various solid acid catalysts like sulfonic acid appended porous silicas, 24 metal oxide nanosheets, 25 ion-exchange resins, 26 and zeolites. 27 Besides, the inorganic acids with subcritical water at 403 K, 28 organic acids such as oxalic, levulinic, and p-toluenesulfonic acids 2932 were also examined for dehydration of D-fructose.…”

mentioning

confidence: 99%

One-Pot Synthesis of Furans from Various Saccharides Using a Combination of Solid Acid and Base Catalysts

Tuteja

Nishimura

Ebitani

2012

Bulletin of the Chemical Society of Japan

View full text Add to dashboard Cite

One-pot synthesis of furans from various saccharides such as arabinose, rhamnose, and lactose were performed over solid acid and base catalysts. The combination of Amberlyst-15 and hydrotalcite catalysts showed successful activity for corresponding furans formation such as 2-furaldehyde (furfural), 5-hydroxymethyl-2-furaldehyde (HMF), and 5-methyl-2-furaldehyde (MF) via one-pot synthesis including isomerization and dehydration reactions. Moreover, the acidbase pair catalysts were also found to display excellent activity for the transformation from mixed-sources of sugars to furans. It was indicated that the isomerization of saccharides and successive dehydration in the one-pot synthesis of furans will be a great approach in a biorefinery.Biorefineries have gained much attention due to the potential to serve as a source of carbon-based fuels and chemicals in a carbon-neutral fashion, 13 the CO 2 released during energy conversion is consumed during subsequent biomass regrowth. Lignocellulosic biomass encompassing municipal and animal wastes, forestry residues, and others is a special interest resource on account of being the most abundant, inedible, and inexpensive biomass. The challenge for effective utilization is to develop cost-effective processes for transformation of huge built carbohydrates into value-added chemical compounds. Furan derivatives such as 2-furaldehyde (furfural), 5-hydroxymethyl-2-furaldehyde (HMF), and 5-methyl-2-furaldehyde (MF) have the potential to be substitutes of building blocks derived from petrochemicals in the production of fine chemicals, pharmaceuticals, and polymers. 48 For instance, HMF can be converted to 2,5-diformylfuran, 2,5-furandicarboxylic acid, 2,5-dimethylfuran, and levulinic acid. 4,913 MF is a useful intermediate for the production of agricultural chemicals (pesticides) and fragrances, and is a common flavoring component in the food industry and is considered a potential antitumor agent.1417 Industrial solvents like 1,5-pentanediol, 1,4-butanediol, and building blocks such as succinic acid, maleic acid are the main products derived from furfural. 1821Recently, Lam et al. 22 and Binder et al. 23 have reported the synthesis of furfural from xylose in good yield using Nafion 117 and chromium halide with ionic liquid, respectively. Dehydration of xylose to furfural is investigated using various solid acid catalysts like sulfonic acid appended porous silicas, 24 metal oxide nanosheets, 25 ion-exchange resins, 26 and zeolites. 27Besides, the inorganic acids with subcritical water at 403 K, 28 organic acids such as oxalic, levulinic, and p-toluenesulfonic acids 2932 were also examined for dehydration of D-fructose. From the view point of reaction system activation, dehydration in watermethyl isobutyl ketone or watertoluene biphasic systems were also investigated with H-mordenite and Hfaujasite by Moreau et al. 33 Although the yield obtained is significant in the above-mentioned processes most of them involve use of high temperature, severe reaction conditions, and difficu...

show abstract

“…These larger molecules may act as precursors of coke formation, which are deposited on the catalyst surface with an increase in reaction time, and then they decrease the acid sites of the catalyst. At the same time, the accumulation of byproducts on the catalyst surface leads to a decrease in pore size and then to a slower diffusion of the reactant/products through the porous structure [8]. Therefore, allowing a longer residence time for secondary reactions affects the yield of furfural and the furfural selectivity.…”

Section: C-nmrmentioning

confidence: 99%

“…For instance, Moreau et al found that microporous zeolites such as mordenites and faujasites catalyze the conversion of xylose into furfural derivatives with high selectivity [7]. Dias et al investigated the exfoliation of transition metal oxides [8]. Lima et al reported on the use of layered zeolite Nu-6(1) as the catalyst for the acid-catalyzed dehydration of xylose [9].…”

Section: Introductionmentioning

confidence: 99%

Selective Preparation of Furfural from Xylose over Sulfonic Acid Functionalized Mesoporous Sba-15 Materials

Shi

et al. 2011

Energies

View full text Add to dashboard Cite

Sulfonic acid functionalized mesoporous SBA-15 materials were prepared using the co-condensation and grafting methods, respectively, and their catalytic performance in the dehydration of xylose to furfural was examined. SBA-15-SO 3 H(C) prepared by the co-condensation method showed 92-95% xylose conversion and 74% furfural selectivity, and 68-70% furfural yield under the given reaction conditions. The deactivation and regeneration of the SBA-15-SO 3 H(C) catalyst for the dehydration of xylose was also investigated. The results indicate that the used and regeneration catalysts retained the SBA-15 mesoporous structure, and the S content of SBA-15-SO 3 H(C) almost did not change. The deactivation of the catalysts is proposed to be associated with the accumulation of byproducts, which is caused by the loss reaction of furfural. After regeneration by H 2 O 2 , the catalytic activity of the catalyst almost recovered.

show abstract

Exfoliated titanate, niobate and titanoniobate nanosheets as solid acid catalysts for the liquid-phase dehydration of d-xylose into furfural

Cited by 188 publications

References 28 publications

Dehydration of xylose to furfural over niobium phosphate catalyst in biphasic solvent system

Dehydration of xylose to furfural over niobium phosphate catalyst in biphasic solvent system

One-Pot Synthesis of Furans from Various Saccharides Using a Combination of Solid Acid and Base Catalysts

Selective Preparation of Furfural from Xylose over Sulfonic Acid Functionalized Mesoporous Sba-15 Materials

Contact Info

Product

Resources

About