Facile Synthesis of Decavanadate-Based Poly(Ionic Liquids) for Efficient Aerobic Oxidative Desulfurization in Fuels

Due to the increased concern on the environmental issues, the desulfurization process in fuel is of great importance in the recent years. Herein, a series of decavanadate-based poly(ionic liquids) with different alkyl chain length were successfully designed with a facile ion exchange method, and applied in aerobic oxidative desulfurization of refractory sulfur compounds in fuels. The prepared catalysts exhibited high catalytic activity on DBT, which could reach 98.8% under optimal conditions as well as good desulfurization performance on different sulfur compounds. Based on various characterization and experimental results, the structure-function relationship and proposed mechanism were investigated in detail