Synthesis of Vanadium Peroxocomplexes as Oxidation Catalysts of Diesel Fuel desulfurization by Hydrogen Peroxide Using Cationic Surfactants in Bi-phase Systems

摘要

Novel vanadium oxodiperoxocomplexes [C_(19)H_(42) N]~+[VO(O2)2L2]~-·2H2O and [C_(38)H_(84)N]~(2+) [VO(O2)L2]~(2-)· 2H2O were synthesized, where L = pyridine (1), 2-methyl-pyridine (2) and 4-methylpyridine (3), using CTAB and 16-2-16 as cationic gemini surfactant. All complexes were characterized by ~1H-NMR, IR spectroscopy, XRD, DSC-TGA analyses and TEM. The diesel fuel desulfurization catalyzed by vanadium peroxocomplexes in bi-phase system was investigated in various solvents. The complexes manifested high catalytic activity and selectivity in removal of sulfur compounds.