Al(NO₃)₃ immobilized on expanded corn starch catalyst (ECS-IL-Al(NO₃)₃) was prepared by silane-modified imidazolium ionic liquid reacting with expanded corn starch (ECS) and coordination of Al(NO₃)₃ with the imidazolium chloride grafted on the surface, as proved by FT-IR, NMR, SEM/EDS, and XPS. The catalytic activity of ECS-IL-Al(NO₃)₃ was evaluated in the 5-hydroxymethylfurfural (HMF) oxidation under mild conditions with 98% of 2,5-diformylfuran (DFF) production at 99% HMF conversion after 5 h at 50 °C, using molecular oxygen as the oxidant. Furthermore, this catalyst was found to exhibit excellent recyclability, making it an attractive catalytic system from economic and environmental points of view.

的Al（NO ₃）₃固定在膨化玉米淀粉催化剂（ECS-IL-的Al（NO ₃）₃）的制备是通过硅烷改性咪唑鎓离子液体与膨化玉米淀粉（ECS）和Al的协调（NO反应₃）₃ FT-IR，NMR，SEM / EDS和XPS证明了氯化咪唑鎓接枝在表面上。ECS-IL-Al（NO ₃）₃的催化活性使用分子氧作为氧化剂，在温和的条件下，在5-羟甲基糠醛（HMF）氧化中，在50°C下5小时后，在98％的HMF转化率下，生成98％的2,5-二甲酰呋喃（DFF），评估了该反应。此外，发现该催化剂表现出优异的可再循环性，从经济和环境的角度来看，使其成为有吸引力的催化体系。