Direct synthesis of 5-hydroxymethylfurfural (HMF) hydrogenated derivatives from fructose by designing multifunctional tandem catalysts

果糖直接转化生成5-羟甲基糠醛（HMF）氢化衍生物是生物质绿色和可持续利用的关键。去年，合成了各种金属负载型催化剂，并评价了其对HMF加氢的活性。与其它贵金属相比，Cu/SiO2催化剂对C=O键的加氢具有较高的选择性，但C-OH不发生变化，主要产物为2，5-二（羟甲基）呋喃（BHMF）。FeOx对Cu/SiO2的改性促进了Cu活性中心在催化剂表面的分散，大大提高了催化剂的加氢活性，在温和条件下，HMF转化率为99%，BHMF生成率为99%。

The formation of 5-hydroxymethylfurfural (HMF) hydrogenated derivatives through direct transformation of fructose is essential for green and sustainable utilization of biomass. Last year, various metal-supported catalysts were synthesized and evaluated for the activities to hydrogenation of HMF. Cu/SiO2 catalyst, compared to other noble metals, showed high selectivity towards the hydrogenation of C=O bonds but leaving C-OH unchanged, producing 2,5-bis(hydroxymethyl)furan (BHMF) as the main products. Furthermore, the modification of Cu/SiO2 by FeOx, which promoted the dispersion of Cu active sites on the catalyst surface, greatly improved the hydrogenation activity with 99% BHMF formation at 99% HMF conversion under mild conditions.