2,5-diformylfuran (DFF) is an important downstream product obtained by selective oxidation of the biomass-based platform compound 5-hydroxymethylfurfural (HMF). In this study, a phosphorus-doped carbon (P-C) supported vanadium phosphate oxide (VPO) catalyst was successfully prepared and showed remarkably high catalytic activity in the selective oxidation of HMF to produce DFF with air as an oxidant. The effects of the reaction temperature, reaction time, solvent, catalyst amount, and VPO loading amount were investigated. The results showed that an HMF conversion rate of 100% and a DFF yield of 97.0% were obtained under suitable conditions, and DMSO was found to be the most suitable solvent under an air atmosphere.

中文翻译：

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磷掺杂的碳负载磷酸钒氧化物催化5-羟甲基糠醛催化氧化为2,5-二甲酰呋喃

2,5-二甲酰呋喃（DFF）是一种重要的下游产物，它是通过选择性氧化基于生物质的平台化合物5-羟甲基糠醛（HMF）获得的。在这项研究中，成功​​地制备了掺磷碳（PC）负载的磷酸钒钒（VPO）催化剂，并在以空气为氧化剂的HMF选择性氧化生产DFF中显示出很高的催化活性。研究了反应温度，反应时间，溶剂，催化剂用量和VPO用量的影响。结果表明，在合适的条件下，HMF的转化率为100％，DFF的产率为97.0％，并且发现DMSO是在空气气氛下最合适的溶剂。