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|title: ||Supported ionic liquid silica nanoparticles (SILnPs) as an efficient and recyclable heterogeneous catalyst for the dehydration of fructose to 5-hydroxymethylfurfural|
|authors: ||Sidhpuria, Kalpesh B.|
Daniel-da-Silva, Ana L.
Coutinho, João A. P.
|issue date: ||2011|
|publisher: ||Royal Society of Chemistry|
|abstract: ||Supported ionic liquid nanoparticles (SILnPs) having particle size ranging from 293 ± 2 to 610 ±
11 nm have been prepared by immobilization of ionic liquid, 1-(tri-ethoxy silyl-propyl)-
3-methyl-imidazolium hydrogen sulfate (IL-HSO4) on the surface of silica nanoparticles. The
catalytic activity of the prepared SILnPs was investigated for the dehydration of fructose to
5-hydroxymethylfurfural (HMF) in the presence of dimethylsulfoxide (DMSO) as a solvent. The
reaction temperature and amount of catalyst have been optimized for dehydration of fructose over
SILnPs using experimental design leading to 99.9% fructose conversion and 63.0% HMF yield
using silica SILnPs (d = 610 ± 11) nm at 130.0 ◦C in 30 min reaction time. The SILnPs catalysts
developed in this study present improved performances over other zeolites and strong acid ion
exchange resin catalysts, and they have been efficiently and very easily recycled over seven times
without any significant loss in fructose conversion and HMF yield.|
|source: ||Green Chemistry|
|appears in collections||DQ - Artigos|
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