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- W4308222762 abstract "• Porous phosphomolybdate-based poly(ionic liquid) containing 70% water was firstly synthesized and applied for oxidative desulfurization. • Desulfurization efficiency could achieve 100 % at 40 min with lower H 2 O 2 /S (molar ratio) and catalyst dosage. • The effects of water on the microstructure and catalytic activity were systematically investigated, and the water absorption behavior of the catalyst is reversible. A novel porous phosphomolybdate-based poly(ionic liquid) catalyst containing 70 % water (PDIM-PMo-W 70% ) was assembled with H 3 PMo 12 O 40 (HPMo) and poly-[3-dodecyl-1-vinylimidazolium] bromine (PDIMBr), and characterized by FT-IR, UV–vis, XRD, XPS, Contact angle test, SEM, TEM, TGA, and N 2 adsorption–desorption analysis. The turnover frequency (TOF) value of PDIM-PMo-W 70% for (dibenzothiophene) DBT removal can reach 41.15 h −1 at 50 °C, which is 35.47 and 9.92 times higher than that of HPMo and PDIM-PMo. The catalyst could be recycled at least five times without a significant change in catalytic activity. The water content of the catalyst, reaction temperature, the molar ratio of H 2 O 2 /S, catalyst dosage and different sulfur-containing compounds upon oxidative desulfurization (ODS) performance were studied in detail. Most notably, the effects of water on the microstructure and catalytic activity of polyoxometalate-based poly(ionic liquid) were systematically investigated for the first time. As well as the water absorption behavior on the catalyst was reversible, and the dehydrated catalysts after soaking in water could still show excellent catalytic activity. In addition, a reasonable reaction mechanism was proposed with the aid of EPR analysis and radical quenching experiments." @default.
- W4308222762 created "2022-11-09" @default.
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- W4308222762 date "2023-02-01" @default.
- W4308222762 modified "2023-10-06" @default.
- W4308222762 title "Porous phosphomolybdate-based poly(ionic liquid) hybrids with reversible water absorption for enhancement of oxidative desulfurization" @default.
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- W4308222762 doi "https://doi.org/10.1016/j.fuel.2022.126392" @default.
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