Synthesis and Anti-Knock Properties of Furfural Derivatives

Tarabanko, Valery E.; Chernyak, Mikhail Yu.; Kaygorodov, Konstantin L.; Морозов, А.; Kondrasenko, Alexandеr A.; Orlovskaya, N. F.; Bezborodov, Yuriy N.

doi:10.17516/1998-2836-2016-9-2-221-229

Cited by 3 publications

(1 citation statement)

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“…However, on qualitative level, there may be merit in the hypothesis about limited solvation in the catalyst vicinity. For example, this can be one of the possible reasons why 5-HMF tends to not degrade into levulinic acid under catalysis by solid acids: Transformation of 5-HMF into levulinic acid includes a hydration step; [27] thus, low activity of water in the reaction medium is a key factor of 5-HMF stability. This is why 5-HMF principally forms in non-aqueous media (polyethylene glycol, [28] dimethyl sulfoxide, [29] dioxane, [30] etc.)…”

Section: Introductionmentioning

confidence: 99%

Electrical Double Layer as a Model of Interaction between Cellulose and Solid Acid Catalysts of Hydrolysis

Tarabanko

Kukhtetskiy

et al. 2019

ChemPhysChem

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Solid acid catalysts of cellulose hydrolysis in aqueous media attract considerable research interest because of the ease of their separation from the reaction products. The nature of interaction between the two solids is a relevant topic of ongoing research. One aspect of behavior of solid acids in water was not previously discussed in literature with regard to hydrolysis of cellulose: electrolytic dissociation and formation of electric double layers. In this work, on theoretical level, we consider the role of the double layer created by the solid acid when cellulose hydrolysis takes place. The diffuse layer of protons is regarded as the medium where the hydrolysis reaction occurs. Protonation of cellulose by these protons imparts positive charge onto its surface, and cellulose is electrostatically attracted to the polyanion of the catalyst. Thus, the two solid surfaces stay close to each other despite Brownian motion; this allows explaining the high activity of solid catalysts even when chemisorption of carbohydrates on a catalyst is not favorable.

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Section: Introductionmentioning

confidence: 99%