@article { ISI:000489332600054,
	title = {Large-pore silica spheres as support for samarium-coordinated undecamolybdophosphate: Oxidative desulfurization of diesels},
	journal = {Fuel},
	volume = {259},
	year = {2020},
	note = {<p>n/a</p>
},
	month = {{JAN 1}},
	pages = {116213},
	abstract = {<p>A novel composite has been prepared through the immobilization of the Keggin sandwich-type {[}Sm (PMo11O39)(2)](11-) anion (SmPOM) on large-pore silica spheres previously functionalized with trimethylammonium groups (TMA). The resulting SmPOM@TMA-LPMS material has been evaluated as heterogeneous catalyst in a biphasic desulfurization 1:1 diesel/extraction solvent system using H2O2 as oxidant. Preliminary experiments were conducted with different extraction solvents, acetonitrile and {[}BMIM]PF6 ionic liquid. The optimized extractive and catalytic oxidative desulfurization system (ECODS) with {[}BMIM]PF6 was able to reach complete sulfur removal from a model diesel containing 2100 ppm S in just 60 min (10 min of initial extraction + 50 min of catalytic step). The reutilization of catalyst and extraction phase has been successfully performed without loss of desulfurization efficiency in consecutive cycles, turning the process more sustainable and cog-effective. The remarkable results with simulated diesel have motivated the application of the catalyst in the desulfurization of untreated real diesel and 74\% of efficiency was achieved after only 2 h for three consecutive cycles.</p>
},
	issn = {{0016-2361}},
	doi = {{10.1016/j.fuel.2019.116213}},
	url = {https://www.sciencedirect.com/science/article/pii/S0016236119315674},
	author = {Mirante, Fatima and Alves, Ana C. and Juliao, Diana and Almeida, Pedro L and Gago, Sandra and Valenca, Rita and Ribeiro, Jorge C. and Baltazar de Castro and Granadeiro, Carlos M. and Balula, Salete S.}
}
