https://commons.ufh.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 Imidazole-functionalized polymer microspheres and fibers–useful materials for immobilization of oxovanadium (IV) catalysts https://commons.ufh.ac.za/vital/access/manager/Repository/vital:51431 99%) were obtained in under 240 min with turn-over frequencies ranging from 21.89 to 265.53 h−1, depending on the quantity of catalyst and temperature. The microspherical catalysts also proved to be recyclable with no drop in activity being observed after three successive reactions. The vanadium functionalized fibers were applied in a pseudo continuous flow set-up. Factors influencing the overall conversion and product selectivity, including flow rate and catalyst quantity, were investigated. At flow rates of 1–4 mL h−1 near quantitative conversion was maintained over an extended period. Keeping the mass of catalyst constant (0.025 g) and varying the flow rate from 1–6 mL h−1 resulted in a shift in the formation of the oxidation product methyl phenyl sulfone from 60.1 to 18.6%.]]> Wed 10 Apr 2024 14:17:42 SAST ]]> Oxovanadium (IV)-containing poly (styrene-co-4′-ethenyl-2-hydroxyphenylimidazole) electrospun nanofibers for the catalytic oxidation of thioanisole https://commons.ufh.ac.za/vital/access/manager/Repository/vital:50959 Wed 08 May 2024 16:09:39 SAST ]]> Catalytic oxidation of thioanisole using oxovanadium (IV)‐functionalized electrospun polybenzimidazole nanofibers https://commons.ufh.ac.za/vital/access/manager/Repository/vital:51000 Wed 05 Apr 2023 08:51:07 SAST ]]>