Selective oxidation of 5-hydroxymethylfurfural into 2,5-diformylfuran over VPO catalysts under atmospheric pressure

Abstract

Vanadium phosphate oxide (VPO) heterogeneous catalysts with different V/P molar ratios were prepared. VPO exhibited highly selective oxidation of HMF. The highest DFF yield of 83.6% was obtained under atmospheric air pressure.

Hydroxyapatite‐Supported Polyoxometalates for the Highly Selective Aerobic Oxidation of 5‐Hydroxymethylfurfural or Glucose to 2,5‐Diformylfuran under Atmospheric Pressure

“…There was few reports on 5-HMF oxidation upon oxygen under atmospheric pressure or upon air so far. [22][23][24][25][26] Thus, a new catalytic system is required to be developed to achieve 5-HMF oxidation to DFF under atmospheric pressure with high efficiency. Additionally, the one-pot conversion of monosaccharides (such as fructose and glucose) into DFF is of greater value and lower cost in comparison to production of DFF from 5-HMF.…”

“…In the present study, we developed a new approach to preparing POM ((NH 4 ) 5 H 6 PV 8 Mo 4 O 40 ) doped in HAP and investigated their catalytic performance in 5‐HMF cascade conversion into DFF. DFF is generally produced from the transformation of 5‐HMF with a high yield of more than 90 % by homogeneous or heterogeneous catalysts (Table S1, Supporting Information) [10,21–49] . Among reported catalysts, POMs containing V and Mo were proved to be active in targeted aerobic oxidation of 5‐HMF to DFF [42,50] .…”

“…Meanwhile, the aerobic oxidation of 5‐HMF was achieved under atmospheric pressure, which could fulfill higher safety and economical needs. There was few reports on 5‐HMF oxidation upon oxygen under atmospheric pressure or upon air so far [22–26] . Thus, a new catalytic system is required to be developed to achieve 5‐HMF oxidation to DFF under atmospheric pressure with high efficiency.…”

Phosphorus-Doped Carbon Supported Vanadium Phosphate Oxides for Catalytic Oxidation of 5-Hydroxymethylfurfural to 2,5-Diformylfuran

“…Along this line, value-added chemicals processed by biomass have been researched widely [2]. 5-hydroxymethylfurfural (HMF), a biomass-derived chemical, which is classified by the US Department of Energy as one of the "Top 10 + 4" platform molecules, can be obtained by losing three molecules of water from hexose obtained from cellulose [3][4][5][6]. As a multifunctional intermediate connecting a biomass resource to the chemical industry, HMF can be used to synthesize various chemical products through hydrogenation, oxidation, polymerization, and ring-opening reactions [7][8][9][10][11].…”

“…Hence, finding an appropriate approach to this conversion is needed. According to research by Lai et al [3], the catalyst vanadium phosphate oxide (VPO) has a bright future in catalytic oxidation. As a transition metal with multiple valences of vanadium species, vanadium has been considered for use in HMF oxidation.…”