Catalytic Oxidation of 5-Hydroxymethylfurfural to 2,5-Diformylfuran over Atomically Dispersed Ruthenium Catalysts
Yifei Liu, Tao Gan, Qian He, Hao Zhang, Xiaohui He, Hongbing Ji
Abstract
In this study, atomically dispersed metal catalysts supported on metal oxides are prepared through a ball milling method. The Ru1/NiO catalyst shows superior performance for the selective oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF), with 91.1% HMF conversion and 81.3% selectivity to DFF under 110 °C for 2.0 h. It also displays promising recyclability with no aggregation after three catalytic runs. Moreover, the ball milling method shows greatly favorable applicability in preparing a family of oxide-supported atomically dispersed noble-metal catalysts. Our approach not only provides a facile, low-cost, and green method to atomically dispersed catalysts but also benefits the development of highly efficient catalysts for biomass conversion reactions.