Bifunctional SO 4 /ZrO 2 catalysts for 5-hydroxymethylfufural (5-HMF) production from glucose
2013; Royal Society of Chemistry; Volume: 4; Issue: 2 Linguagem: Inglês
10.1039/c3cy00409k
ISSN2044-4761
AutoresAmin Osatiashtiani, Adam F. Lee, David R. Brown, Juan A. Melero, Gabriel Morales, Karen Wilson,
Tópico(s)Supercapacitor Materials and Fabrication
ResumoThe telescopic conversion of glucose to fructose and then 5-hydroxymethylfurfural (5-HMF), the latter a potential, bio-derived platform chemical feedstock, has been explored over a family of bifunctional sulfated zirconia catalysts possessing tuneable acid–base properties. Characterisation by acid–base titration, XPS, XRD and Raman reveal that submonolayer SO4 coverages offer the ideal balance of basic and Lewis–Brønsted acid sites required to respectively isomerise glucose to fructose, and subsequently dehydrate fructose to 5-HMF. A constant acid site normalised turnover frequency is observed for fructose dehydration to 5-HMF, confirming a common Brønsted acid site is responsible for this transformation.
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