Enhanced interfacial interaction of mesoporous N, S co-doped carbon supported WO3-WS2 for green and selective oxidation of alcohols

Xu, Cai; Dai, Liyan; Chen, Yingqi; Zhang, Shaoyong; He, Chaozheng; Wang, Xiaozhong

doi:10.1016/j.apsusc.2022.155296

Cited by 12 publications

(2 citation statements)

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“…Upon heating these Pickering emulsions to 80 °C in the presence of oxidants such as H 2 O 2 , benzyl alcohol was successfully oxidized into benzyl aldehyde. The turnover number (TON) of the ferrite nanoparticles in PIC (48-55) was found to be 1.5-4 times higher than that in acetonitrile (13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30). The reaction followed first-order kinetics for MnFe 2 O 4 , and the reaction constants in PIC and acetonitrile were determined to be 0.712 h −1 and 0.310 h −1 , respectively.…”

Section: Discussionmentioning

confidence: 94%

“…However, the high cost and limited availability of noble metals restricted their widespread use as catalysts. As a result, researchers have explored the use of inexpensive and earth-abundant elements with good catalytic activity and selectivity, such as Zn–Co–LDH, 16 V–C, 17 Fe–N–C, 18 W/NS@C, 19 and PTA@MMS. 20 Despite the promising results achieved with these alternative catalysts, the insufficient interaction between reactants and heterogeneous catalysts, caused by poor miscibility or agglomeration, often leads to time-consuming alcohol oxidation processes.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic-responsive Pickering emulsions based on MFe₂O₄ (M = Mn, Fe, Co, Ni, Cu, Zn) for green and efficient oxidation of benzyl alcohol

Wang,

Dong

et al. 2024

Green Chem.

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Section: Discussionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Magnetic-responsive Pickering emulsions based on MFe₂O₄ (M = Mn, Fe, Co, Ni, Cu, Zn) for green and efficient oxidation of benzyl alcohol

Wang,

Dong

et al. 2024

Green Chem.

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WO₃‐based Materials for Photocatalytic and Photoelectrocatalytic Selective Oxidation Reactions

Wang,

Einaga

2023

ChemCatChem

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Selective oxidation reactions are crucial in producing various chemicals in the industry. However, most catalytic processes for these reactions use harsh reaction conditions. Recently, heterogeneous photo(electro)catalysis has been considered promising for selective oxidation reactions under mild conditions. Semiconductor materials are frequently used as heterogeneous photocatalysts because they can produce active species that contribute to the oxidation of organic compounds under light irradiation. Among various semiconductor photocatalysts, tungsten oxide (WO3) is one of the most promising candidates due to its advantages, including high stability, wide light adsorption range, proper band structures, and unique catalytic mechanism. This paper reviews the WO3‐based materials for photocatalytic (PC) and photoelectrocatalytic (PEC) selective oxidations. We summarize the strategies for designing WO3 structures, which include morphology control, crystal facet optimization, and defect engineering. Then, the finely designed WO3 structures for PC and PEC oxidation of several typical organic compounds have been discussed based on catalytic mechanism and performance. Finally, we propose the prospects and challenges of WO3 photocatalysts and photoanodes in selective oxidation reactions.

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Insights into the Synergistic Catalytic Effect of TiO₂ Supported V‐W Oxides for Selective C−H Bond Oxidation of Cyclohexane to KA Oil

Xu,

Long,

Zhong

et al. 2024

Chemistry A European J

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It is urgent to develop an efficient and stable non‐noble metal catalyst for selective C−H bond oxidation of cyclohexane. Herein, a series of V−W oxides supported on TiO2 catalysts (V−W/TiO2) were fabricated. The V−W/TiO2 catalysts exhibited much higher catalytic activity for the selective oxidation of cyclohexane to KA oil, compared to that of V/TiO2 and W/TiO2 catalysts. The good distribution of active metals and the synergistic effect were responsible for the enhanced catalytic activity. H2‐TPR results disclosed that the presence of V in V−W/TiO2 affected the reducibility of W6+ species, and XPS verified that an electronic interaction was formed between them. Such results led to good catalytic reusability of V−W/TiO2 catalyst during the reactions, and no obvious activity loss was found after six runs. The reaction mechanism was investigated, and the results verified that hydroxyl radicals generated from H2O2 homolysis were the main active oxidative species. Theoretical study revealed that V dopant could regulate electronic structure of adjacent O atom, facilitating the adsorption of cyclohexane, and lower energy was needed for the rate‐limiting step over V−W/TiO2 during the whole oxidation reaction. This work developed an efficient V−W/TiO2 catalyst for the selective oxidation of cyclohexane via a synergistic effect.

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Enhanced interfacial interaction of mesoporous N, S co-doped carbon supported WO3-WS2 for green and selective oxidation of alcohols

Cited by 12 publications

References 75 publications

Magnetic-responsive Pickering emulsions based on MFe₂O₄ (M = Mn, Fe, Co, Ni, Cu, Zn) for green and efficient oxidation of benzyl alcohol

Magnetic-responsive Pickering emulsions based on MFe₂O₄ (M = Mn, Fe, Co, Ni, Cu, Zn) for green and efficient oxidation of benzyl alcohol

WO₃‐based Materials for Photocatalytic and Photoelectrocatalytic Selective Oxidation Reactions

Insights into the Synergistic Catalytic Effect of TiO₂ Supported V‐W Oxides for Selective C−H Bond Oxidation of Cyclohexane to KA Oil

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Enhanced interfacial interaction of mesoporous N, S co-doped carbon supported WO3-WS2 for green and selective oxidation of alcohols

Cited by 12 publications

References 75 publications

Magnetic-responsive Pickering emulsions based on MFe2O4 (M = Mn, Fe, Co, Ni, Cu, Zn) for green and efficient oxidation of benzyl alcohol

Magnetic-responsive Pickering emulsions based on MFe2O4 (M = Mn, Fe, Co, Ni, Cu, Zn) for green and efficient oxidation of benzyl alcohol

WO3‐based Materials for Photocatalytic and Photoelectrocatalytic Selective Oxidation Reactions

Insights into the Synergistic Catalytic Effect of TiO2 Supported V‐W Oxides for Selective C−H Bond Oxidation of Cyclohexane to KA Oil

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Product

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Magnetic-responsive Pickering emulsions based on MFe₂O₄ (M = Mn, Fe, Co, Ni, Cu, Zn) for green and efficient oxidation of benzyl alcohol

Magnetic-responsive Pickering emulsions based on MFe₂O₄ (M = Mn, Fe, Co, Ni, Cu, Zn) for green and efficient oxidation of benzyl alcohol

WO₃‐based Materials for Photocatalytic and Photoelectrocatalytic Selective Oxidation Reactions

Insights into the Synergistic Catalytic Effect of TiO₂ Supported V‐W Oxides for Selective C−H Bond Oxidation of Cyclohexane to KA Oil