Catalysis Letters, Vol.144, No.6, 1043-1052, 2014
Synthesis of Vanadium Peroxocomplexes as Oxidation Catalysts of Diesel Fuel desulfurization by Hydrogen Peroxide Using Cationic Surfactants in Bi-phase Systems
Novel vanadium oxodiperoxocomplexes [C19H42N](+)[VO(O-2)(2)L-2](-)center dot 2H(2)O and [C38H84N](2+) [VO(O-2)L-2](2-)center dot 2H(2)O were synthesized, where L = pyridine (1), 2-methylpyridine (2) and 4-methylpyridine (3), using CTAB and 16-2-16 as cationic gemini surfactant. All complexes were characterized by H-1-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. Novel vanadium oxodiperoxocomplexes [C19H42N](+)[VO(O-2)(2)L-2](-)center dot 2H(2)O and [C38H84N](2)[VO(O-2)L-2](2-)center dot 2H(2)O were synthesized, where L = pyridine (1), 2-methylpyridine (2) and4-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.