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Aerobic oxidative desulfurization coupling of Co polyanion catalysts and p-TsOH-based deep eutectic solvents through a biomimetic approach

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Abstract

A unique coupled redox biomimetic catalytic system using the Anderson-type polyoxometallate (POM) (NH4)3Co(OH)6Mo6O18 and p-toluenesulfonic acid (p-TsOH)-based deep eutectic solvents (DESs) as cocatalysts, which served as electron donors and electron-transfer mediators (ETMs), can selectively oxidize the sulfides in diesel into their corresponding sulfones. The use of coupled redox systems with ETMs facilitates the reaction process by transporting electrons from Co-POM to the oxidant along a low-energy pathway, making DBT prone to oxidize to DBTO2. The biomimetic system demonstrates outstanding desulfurization performance with oxygen as an oxidant in the absence of sacrificial agents and under mild conditions.

Graphical abstract: Aerobic oxidative desulfurization coupling of Co polyanion catalysts and p-TsOH-based deep eutectic solvents through a biomimetic approach

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Publication details

The article was received on 17 Dec 2018, accepted on 08 Feb 2019 and first published on 09 Feb 2019


Article type: Paper
DOI: 10.1039/C8GC03941K
Citation: Green Chem., 2019, Advance Article

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    Aerobic oxidative desulfurization coupling of Co polyanion catalysts and p-TsOH-based deep eutectic solvents through a biomimetic approach

    L. Sun, T. Su, J. Xu, D. Hao, W. Liao, Y. Zhao, W. Ren, C. Deng and H. Lü, Green Chem., 2019, Advance Article , DOI: 10.1039/C8GC03941K

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