Protonated and layered transition metal oxides as solid acids for dehydration of biomass-based fructose into 5-hydroxymethylfurfural

• Published in: Journal of energy chemistry Vol. 26; no. 1; pp. 147 - 154
• Main Authors: Zhong, Jiawei, Guo, Yuanyuan, Chen, Jinzhu
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2017
• Subjects: 5-Hydroxymethylfurfural; Biomass; Dehydration; Layered transition metal oxide; Solid acid; Biomass; Layered transition metal oxide; Dehydration; Solid acid; 5-Hydroxymethylfurfural
• ISSN: 2095-4956
• DOI: 10.1016/j.jechem.2016.09.010

A serial of protonated and layered transition metal oxides, including layered HTaWO6, HNbMoO6 as well as HNbWO6, were synthesized by solid-state reaction and ion-exchange. The layered HTaWO6 has been systematically studied as a solid acid to realize the dehydration of fructose to 5-hydroxymethylfurfural (HMF). The transition metal oxide samples were characterized with ICP-OES, EDS, XRD, XPS, SEM, TGA, FT-IR, N2 adsorption–desorption and NH3-TPD. The influential factors such as reaction temperature, reaction time, solvent, catalyst amount and substrate concentration were deeply investigated. The optimized fructose conversion rate of 99% with HMF yield of 67% were achieved after 30min at 140°C in dimethylsulfoxide. Solid acid of protonated and layered transition metal oxide allows biomass-based fructose dehydration to 5-hydroxymethylfurfural. [Display omitted]