Details

Autor(en) / Beteiligte

• Kashin, Alexey S.
• Galkin, Konstantin I.
• Khokhlova, Elena A.
• Ananikov, Valentine P.

Titel

Direct Observation of Self-Organized Water-Containing Structures in the Liquid Phase and Their Influence on 5-(Hydroxymethyl)furfural Formation in Ionic Liquids

Ist Teil von

• Angewandte Chemie (International ed.), 2016-02, Vol.55 (6), p.2161-2166

Auflage

International ed. in English

Ort / Verlag

Germany: Blackwell Publishing Ltd

Erscheinungsjahr

2016

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Water‐containing organic solutions are widespread reaction media in organic synthesis and catalysis. This type of multicomponent liquid system has a number of unique properties because of the tendency for water to self‐organize in mixtures with other liquids. The characterization of these water domains is a challenging task because of their soft and dynamic nature. In the present study, the morphology and dynamics of micrometer‐ and nanometer‐scale water‐containing compartments in ionic liquids were directly observed by electron microscopy. A variety of morphologies, including isolated droplets, dense structures, aggregates, and 2D meshworks, have been experimentally detected and studied. Using the developed method, the impact of water on the acid‐catalyzed biomass conversion reaction was studied at the microscopic level. The process that produced nanostructured domains in solution led to better yields and higher selectivities compared with reactions involving the bulk system. Watered down: The formation of micrometer‐ and nanometer‐scale compartments in ionic liquids, mediated by addition of water, can be directly observed by using electron microscopy. The morphologies, which include isolated droplets, aggregates, and 2D meshworks, change according to the amount of added water. The ionic liquid/water systems were applied to the formation of the platform chemical 5‐(hydroxymethyl)furfural.