The oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA) has been investigated on multi-functional magnetic nano-composite catalysts ([email protected]@MNP, where M = CoO_x, MnO_x or FeO_x, "10" - 10wt% and x = Si/Nb ratio of 50 and 22) combining Nb-MCM-41 and Mn, Co and Fe oxides as a shell of a magnetic nanoparticles core. These catalysts were exhaustively characterized by several techniques such as XRD, adsorption-desorption of liquid nitrogen at 77K, CO₂- and NH₃-TPD, DRIFT, XPS, SEM-EDX, ICP-OES and ToF-SIMS. The new composite catalysts produced FDCA with a selectivity of 96.5 % for a X_HMF = 96.9 % ([email protected]@MNP). A synergetic effect between MO_x and Nb species in the activation of t-BuOOH and oxidation of HMF has been identified. The new developed catalysts do not require the presence of a base in the homogeneous phase and combine unique oxidation properties with practical separation advantages.

已经在多功能磁性纳米复合催化剂（[电子邮件保护] @MNP，其中M = CoO _x，MnO _x或FeO _x）上研究了5-羟甲基糠醛（HMF）氧化为2,5-呋喃二甲酸（FDCA），“ 10”-10wt％，x = Si / Nb比为50和22）结合了Nb-MCM-41和Mn，Co和Fe氧化物作为磁性纳米粒子核的壳。这些催化剂通过多种技术进行了详尽的表征，例如XRD，液氮在77K下的吸附-脱附，CO _2-和NH ₃ -TPD，DRIFT，XPS，SEM-EDX，ICP-OES和ToF-SIMS。新的复合催化剂生产的FDCA，对于X _HMF = 96.9％（[电子邮件保护] @MNP）的选择性为96.5％。MO之间的协同作用已经鉴定出t- BuOOH活化和HMF氧化中的_x和Nb物质。新开发的催化剂不需要在均相中存在碱，并将独特的氧化性能与实际分离优势结合在一起。