Enhanced catalytic activity over vanadium-containing silylated SBA-15 catalysts for styrene epoxidation and benzene hydroxylation

Hu, Liya; Yue, Bin; Wang, Cheng; Chen, Xueying

doi:10.1016/j.apcata.2014.03.019

Cited by 37 publications

(19 citation statements)

References 35 publications

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“…However, this result seems to be undesirable compared to other functional mesoporous catalysts. For instance, He et al [117] demonstrated that V functionalized SBA-15 showed superior catalytic activity (34.1% conversion and 93.2% selectivity to phenol) through the functional organic silane (dichlorodimethylsilane) modification to improve the wettability of mesoporous surface. The functional organic group was beneficial to the affinity of reactant molecules with catalyst thereby enhancing the reaction progress.…”

Section: Benzene Oxidationmentioning

confidence: 99%

Oriented Decoration in Metal-Functionalized Ordered Mesoporous Silicas and Their Catalytic Applications in the Oxidation of Aromatic Compounds

et al. 2018

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Ordered mesoporous silicas (OMSs) attract considerable attention due to their advanced structural properties. However, for the pristine silica materials, the inert property greatly inhibits their catalytic applications. Thus, to contribute to the versatile surface of OMSs, different metal active sites, including acidic/basic sites and redox sites, have been introduced into specific locations (mesoporous channels and framework) of OMSs and the metal-functionalized ordered mesoporous silicas (MOMSs) show great potential in the catalytic applications. In this review, we first present the categories of metal active sites. Then, the synthesized processes of MOMSs are thoroughly discussed, in which the metal active sites would be introduced with the assistance of organic groups into the specific locations of OMSs. In addition, the structural morphologies of OMSs are elaborated and the catalytic applications of MOMSs in the oxidation of aromatic compounds are illustrated in detail. Finally, the prospects for the future development in this field are proposed.

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Section: Benzene Oxidationmentioning

confidence: 99%

Oriented Decoration in Metal-Functionalized Ordered Mesoporous Silicas and Their Catalytic Applications in the Oxidation of Aromatic Compounds

et al. 2018

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“…Obtaining epoxides by using molecular oxygen as oxidant is the most atom economic pathway to get the desired product because of its inexpensive and environmentally friendly nature. Transition metals like Nb, Mo, V, W and others in their higher oxidation state exhibit Lewis acidity and shows superior catalytic activity towards aerobic oxidation of styrene . Co containing catalysts were proved to be active for styrene epoxidation using molecular oxygen .…”

Section: Introductionmentioning

confidence: 99%

Aerobic Oxidation of Styrene over Indium‐Impregnated Mesoporous Silica: Distinctive Effect of Supports on Epoxidation Activity

Das

Chowdhury

2020

ChemistrySelect

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Liquid phase oxidation of styrene was performed over a series of indium impregnated mesoporous silica materials In-KIT-6, In-HMS-X and In-TUD-1of different morphologies with a constant indium loading of 1 wt % using molecular oxygen as an oxidant. Among these catalysts, In-HMS-X showed superior catalytic activity in terms of styrene conversion of 57 % and In-TUD-1 in terms of styrene oxide selectivity of 90 %. Larger surface area, larger pore diameter, more surface hydrophobicity, more surface acidity were found to be the deciding factors for better conversion. More oxygen uptake, higher reducibility of In species and well dispersion of metal over support were found to be the key enablers for better selectivity. All the catalysts were recyclable up to 5 th cycle.

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“…[6]. Using H 2 , O 2 , N 2 O or O 2 for direct hydroxylation of benzene into phenol becomes an economic alternative for the processing [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Direct Hydroxylation of Benzene Over Cu-Exchanged Hydroxy-Sodalite

Hegazy

elmaksod²,

Kosa

et al. 2018

Egypt. J. Chem.

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Enhanced catalytic activity over vanadium-containing silylated SBA-15 catalysts for styrene epoxidation and benzene hydroxylation

Cited by 37 publications

References 35 publications

Oriented Decoration in Metal-Functionalized Ordered Mesoporous Silicas and Their Catalytic Applications in the Oxidation of Aromatic Compounds

Oriented Decoration in Metal-Functionalized Ordered Mesoporous Silicas and Their Catalytic Applications in the Oxidation of Aromatic Compounds

Aerobic Oxidation of Styrene over Indium‐Impregnated Mesoporous Silica: Distinctive Effect of Supports on Epoxidation Activity

Direct Hydroxylation of Benzene Over Cu-Exchanged Hydroxy-Sodalite

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