MoS2 nanocrystals embedded in hierarchical hollow carbon microspheres for efficient aerobic oxidative desulfurization

Wang, Chuan-Jiao; Zhao, Xiao; Xie, Suting; Chen, Hou; Yang, Lixia; Bai, Liangjiu; Wei, Daming; Wang, W.; Cao, Xingjian; Liang, Ying; Chen, H.

doi:10.1016/j.mtchem.2022.101197

Cited by 3 publications

(4 citation statements)

References 47 publications

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“…• − , which then reacts with sulfide adsorbed on the surface to form sulfones. 171 Recently, magnetic catalysts have emerged as a promising approach for achieving efficient separation and recovery of catalysts using magnetism. Typically, a magnetic catalyst consists of two key components: magnetic materials and active components.…”

Section: Influence Of Reaction Factors On Odsmentioning

confidence: 99%

“…For efficient aerobic ODS of petroleum fuels, Wang et al fabricated a hierarchical porous hollow structure of dopamine and ammonium molybdate (PDA–Mo), which was then transformed into a composite of MoS 2 nanocrystals. The study showed that molecular O 2 is activated by the Mo site via the electron donor to form O 2 • – , which then reacts with sulfide adsorbed on the surface to form sulfones . Recently, magnetic catalysts have emerged as a promising approach for achieving efficient separation and recovery of catalysts using magnetism.…”

Section: Influence Of Reaction Factors On Odsmentioning

confidence: 99%

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Assessment of Reaction Parameters in the Oxidative Desulfurization Reaction

Sahraei

2023

Energy Fuels

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Nowadays, the scientific community is actively researching the advancement of a sustainable effective desulfurization technique. The development of alternative or supplementary approaches to desulfurization has rapidly progressed in recent years. Among these approaches, the oxidative desulfurization (ODS) process stands out as a highly promising method. This can be attributed to its notable selectivity, cost-effectiveness, mild reaction conditions, and overall efficiency. It is essential to consider the role of oxidants, catalysts, and operating conditions in optimizing the ODS process. This review examines a comprehensive understanding of the ODS process and its potential applications in desulfurization. It highlights the importance of oxidants, extractant solvent, and other operating conditions in the ODS process and discusses the different groups of catalysts that can be used. In addition, the review examines five distinct groups of heterogeneous catalysts used in the ODS process: transition metal oxides stabilized, polyoxometalates, ionic liquids, carbon materials, and porous materials. The role of ionic liquids in catalytic and extractive oxidation is also explored. In recent years, alternative or supplementary desulfurization methods have been rapidly developed. The review discusses the advantages and disadvantages of each approach. It explores various techniques that can be employed to mitigate the drawbacks associated with each system.

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Section: Influence Of Reaction Factors On Odsmentioning

confidence: 99%

Section: Influence Of Reaction Factors On Odsmentioning

confidence: 99%

Assessment of Reaction Parameters in the Oxidative Desulfurization Reaction

Sahraei

2023

Energy Fuels

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“…For industrial applications, it is desirable to proceed with AODS under low temperatures and atmospheric pressure to avoid high energy consumption, which, in turn, calls for high-performance catalysts to get past the big challenge of low-temperature activation of O 2 . 24,25 To date, a number of catalysts have been developed for aerobic ODS (AODS), such as metal organic frameworks, 26−31 metal oxides, 32,33 reduced graphene oxides, 34 composite metal oxide catalysts, 35 etc. 36−39 Notably, vanadium-based catalysts with remarkable stability, good activity, and low cost are considered to be promising candidates to boost AODS with cost-effective and highly efficient requirements.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Consequently, the utilization of O 2 instead of H 2 O 2 in the chemical industry is highly desirable and has attracted extensive attention in the past few years. − However, neutral O 2 molecules in the ground state have a triplet-spin configuration, which is unable to enter the chemical reaction. For industrial applications, it is desirable to proceed with AODS under low temperatures and atmospheric pressure to avoid high energy consumption, which, in turn, calls for high-performance catalysts to get past the big challenge of low-temperature activation of O 2 . , …”

Section: Introductionmentioning

confidence: 99%

VO_x Nanoclusters on CePO₄ Nanowires for Oxidative Desulfurization of Thiophene

Yang

Song

Chen

et al. 2022

ACS Appl. Nano Mater.

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Aerobic oxidative desulfurization (AODS) promises to be a sustainable alternative technology for diesel desulfurization, which necessitates the efficient aerobic oxidation of thiophenic sulfides at mild conditions. Here we synthesize cerium phosphate (CePO 4 ) nanowire-supported vanadium oxide (VO x ) nanoclusters, controllably creating coordination-unsaturated V sites for boosting the AODS reaction. We propose that the electron transfer from a Ce species to a V site gives rise to the donor state and enhances its electron-donating capability for the activation of O 2 . We show that the catalyst possesses a higher specific activity than state-of-the-art vanadium oxide catalysts, activates reaction at 90 °C (5.17 mmol g −1 h −1 ), and achieves rapid conversion of various thiophenes under mild conditions. The catalyst demonstrates excellent durability in six cycles of reuse by maintaining an unchanged catalytic performance, a chemical structure, and a physical structure and is expected to act as a sustainable, efficient, and stable AODS catalyst.

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Two‐Dimensional Janus p‐n Heterojunction of Co₃O₄ and CoMoO₄ for Boosting Photocatalytic Oxidative Desulfurization

Wang,

Lan,

et al. 2024

Chin. J. Chem.

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Comprehensive SummaryPhotocatalytic aerobic oxidative desulfurization (PAODS) is a sustainable alternative technology to traditional, energy‐intensive fuel desulfurization methods. Nonetheless, its advancement is hindered by the notable challenge of inadequate electron‐hole separation efficiency within the existing catalytic systems. Herein, a Janus 2D/2D heterostructure composed of Co3O4 and CoMoO4 is reported for the PAODS of thiophenic sulfides. Through a combination of detailed experimental characterizations and density functional theory (DFT) calculations, we elucidate the formation of a type II p‐n heterojunction in the catalyst, significantly enhancing electron‐hole separation through electric field force and reducing the possibility of electron‐hole recombination due to the spatial separation of redox centres. The photocatalyst exhibits exceptional activity and demonstrates an impressive performance of 10.4 mmol·g–1·h–1 in the oxidation of dibenzothiophene (DBT). Moreover, the photocatalyst demonstrates profound desulfurization capabilities in real diesel, reinforcing its promising prospects for industrial application. These discoveries provide invaluable insights, both scientifically and practically, towards the development of advanced photocatalysts for PAODS processes.

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MoS2 nanocrystals embedded in hierarchical hollow carbon microspheres for efficient aerobic oxidative desulfurization

Cited by 3 publications

References 47 publications

Assessment of Reaction Parameters in the Oxidative Desulfurization Reaction

Assessment of Reaction Parameters in the Oxidative Desulfurization Reaction

VO_x Nanoclusters on CePO₄ Nanowires for Oxidative Desulfurization of Thiophene

Two‐Dimensional Janus p‐n Heterojunction of Co₃O₄ and CoMoO₄ for Boosting Photocatalytic Oxidative Desulfurization

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MoS2 nanocrystals embedded in hierarchical hollow carbon microspheres for efficient aerobic oxidative desulfurization

Cited by 3 publications

References 47 publications

Assessment of Reaction Parameters in the Oxidative Desulfurization Reaction

Assessment of Reaction Parameters in the Oxidative Desulfurization Reaction

VOx Nanoclusters on CePO4 Nanowires for Oxidative Desulfurization of Thiophene

Two‐Dimensional Janus p‐n Heterojunction of Co3O4 and CoMoO4 for Boosting Photocatalytic Oxidative Desulfurization

Contact Info

Product

Resources

About

VO_x Nanoclusters on CePO₄ Nanowires for Oxidative Desulfurization of Thiophene

Two‐Dimensional Janus p‐n Heterojunction of Co₃O₄ and CoMoO₄ for Boosting Photocatalytic Oxidative Desulfurization