Metal-free and efﬁcient conversion of different carbohydrates to 5-hydroxymethyl furfural (HMF) with a novel PANI–GO catalyst has been successfully performed. Keywords Dehydration Carbohydrates Hydroxymethyl furfural Polyanilines Biomass conversion Introduction With the depletion of fossil resources and the increase of environmental pollution, the efﬁcient conversion of renewable biomass feedstock to valuable chemicals has attracted considerable attention from many scientists [1, 2], and the selective transformation of biomass-derived sugar compounds to furans has become a hot topic [3–5]. As a potential alternative route, the selective transformation of carbohydrates to 5-hydroxymethyl furfural (HMF) has been broadly investigated ; the catalytic dehydration of D-fructose is the most efﬁcient approach [7, 8]. The obtained HMF had great potential to serve as a substitute for preparing non- petroleum-derived building blocks which have been used in the production of polyamide and more ﬁne products . Moreover, a high-density liquid fuel, 2,5- dimethylfuran (DMF), and polymeric monomer, funan-2,5-dicarboxylic acid (FDCA,) can also be synthesized from HMF via a simple hydrogenation and oxidation process [10, 11]. Thus, developing a novel and efﬁcient catalytic system for the dehydration of carbohydrates to HMF is considered as a signiﬁcant and promising method for the transformation of biomass feedstocks
Research on Chemical Intermediates – Springer Journals
Published: Jun 11, 2016
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