Nature of vanadium species on vanadium silicalite-1 zeolite and their stability in hydroxylation reaction of benzene to phenol

Guo, Bin; Zhu, Liangfang; Hu, Xiaoke; Zhang, Qian; Tong, Dongmei; Li, Guiying; Hu, Changwei

doi:10.1039/c1cy00105a

Cited by 52 publications

(33 citation statements)

References 35 publications

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“…15,16 Arguably the most well-known example from the past decade that successfully demonstrates the advantages that such a strategy could deliver, both from an academic and industrial perspective, relates to the silicalite family, and specifically to the titanium silicate, TS-1. In this system, a small percentage of the Si(IV) ions in the silicalite framework (MFI) have been replaced with Ti(IV) ions.…”

Section: Introductionmentioning

confidence: 99%

Predictive design of engineered multifunctional solid catalysts

2014

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The ability to devise and design multifunctional active sites at the nanoscale, by drawing on the intricate ability of enzymes to evolve single-sites with distinctive catalytic function, has prompted complimentary and concordant developments in the field of catalyst design and in situ operando spectroscopy. Innovations in design-application approach have led to a more fundamental understanding of the nature of the active site and its mechanistic influence at a molecular level, that have enabled robust structure-property correlations to be established, which has facilitated the dextrous manipulation and predictive design of redox and solid -acid sites for industrially-significant, sustainable catalytic transformations.

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Section: Introductionmentioning

confidence: 99%

Predictive design of engineered multifunctional solid catalysts

2014

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“…The quantitative calculation was achieved by the calibration curves using toluene as the standard after the catalytic reaction [23]. The conversion of benzene, yield of phenol, selectivity to phenol, and turnover number (TON) were calculated according to the reference [21].…”

Section: Catalytic Evaluationmentioning

confidence: 99%

“…Among them, vanadium compounds showed excellent catalytic activity in the hydroxylation of benzene, due to their superior redox ability and remarkable stability [16][17][18]. Various vanadium-based catalysts such as V/SiO 2 [19], vanadium oxide (VO x )/clay [20], VS-1 zeolite [21], V-N-C [22], and V-modified mesoporous materials [5,23,24] were investigated for the title reaction. The highly dispersed VO x nanoparticles (NPs) were found to be highly efficient for the hydroxylation of benzene.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Vanadium Oxide/Reduced Graphene Oxide Composite Catalysts for Enhanced Hydroxylation of Benzene to Phenol

et al. 2016

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Abstract:The vanadium oxide/reduced graphene oxide (VO x /RGO) composites have been prepared by a simple solvothermal method with the assistance of cationic surfactant cetyltrimethylammonium bromide (CTAB). The microstructure and morphology of the resultant VO x /RGO composites have been well characterized. The VO x nanoparticles are highly dispersed on the RGO sheets with a particle size of about 25 nm. When used as hydroxylation catalysts, the VO x /RGO composites are more efficient than individual RGO and vanadium oxide catalysts. The enhanced catalytic performance may be related to not only the well dispersed VO x active species, but also the hydrophobic surface and huge π-electron system of RGO for the adsorption and activation of benzene. In addition, the effects of calcination conditions on the microstructure and catalytic properties of VO x /RGO composites have also been investigated. The uniform VO x nanoparticles on the separated RGO sheets show highly efficient catalytic performance, while the formation of aggregated H x V 2 O 5 and bulk V 2 O 5 species along with the destruction of RGO sheets are poor for the hydroxylation of benzene. Up to 17.4% yield of phenol is achieved under the optimized catalytic reaction conditions.

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“…Researchers have long explored the development of such isolated active sites through isomorphous substitution within aluminosilicates (zeolites) and aluminophosphates (AlPOs), since their conception in 1982 [8]. The introduction of a range of transition-metal dopants was explored within zeolites for a wide variety of oxidation and acid-catalysed transformations [9][10][11][12]. One of the most striking examples was the discovery of titanosilicate-1 (TS-1), where isomorphous replacements of Si(IV) with small quantities (ca 2 atom per cent) of tetrahedral Ti(IV) species, catalysed a range of industrially significant, selective oxidation reactions (e.g.…”

Section: Introduction and Design Strategymentioning

confidence: 99%

Influence of dopant substitution mechanism on catalytic properties within hierarchical architectures

et al. 2016

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A range of hierarchically porous (HP) AlPO-5 catalysts, with isomorphously substituted transition metal ions, have been synthesized using an organosilane as a soft template. By employing a range of structural and spectroscopic characterization protocols, the properties of the dopant-substituted species within the HP architectures have been carefully evaluated. The resulting nature of the active site is shown to have a direct impact on the ensuing catalytic properties in the liquid-phase Beckmann rearrangement of cyclic ketones.

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Nature of vanadium species on vanadium silicalite-1 zeolite and their stability in hydroxylation reaction of benzene to phenol

Cited by 52 publications

References 35 publications

Predictive design of engineered multifunctional solid catalysts

Predictive design of engineered multifunctional solid catalysts

Facile Synthesis of Vanadium Oxide/Reduced Graphene Oxide Composite Catalysts for Enhanced Hydroxylation of Benzene to Phenol

Influence of dopant substitution mechanism on catalytic properties within hierarchical architectures

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