Cu-doped mesoporous VOx-TiO2 in catalytic hydroxylation of benzene to phenol

Xu, Dongwei; Jia, Lei; Guo, Xiangfeng

doi:10.1016/s1872-2067(11)60487-7

Cited by 13 publications

(3 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the peaks in the TPR profile of these VTiO x are remarkably shifted to lower temperatures of 406 °C (for V 0.07 Ti 0.93 O x ), 411 °C (V 0.03 Ti 0.97 O x ), and 415 °C (V 0.10 Ti 0.90 O x ), which is attributed to the redox reaction of V 5+ and Ti 4+ species to V 4+ and Ti 3+ . 35,36 The quantitative estimations of H 2 consumption per gram of the TiO 2 and VTiO x samples were 0.85, 0.63, 0.47, and 0.64 mmol•g cat.…”

Section: Structural Texture Of Vtiomentioning

confidence: 96%

Configuration Effect of Plasmonic Vanadium–Titanium Solid Solutions for Photo-oxidation of Benzyl Alcohol

Gong,

Shi,

Khalid

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

Numerous vanadium−titania composites have drawn significant interest as efficient photocatalysts for the photocatalytic oxidation of alcohols into valuable aldehydes or C−C coupling compound intermediates. In this comparative study, the photocatalytic potential of two conformations of vanadium− titania catalysts was analyzed, including a vanadium−titania solid solution of VTiO x and vanadium oxide supported on titania VO x / TiO 2 . The distinct structural interfaces among the components of these catalysts resulted in notably divergent catalytic performances. The VTiO x catalyst is superior to the corresponding supported VO x /TiO 2 catalysts in the photo-oxidation of benzyl alcohol. The vanadium incorporated into the titania lattice influences surface oxygen vacancy defects, examined by a series of technologies, thus distinctly improving the photocatalytic activity. The experimental phenomena supported with density functional theory (DFT) studies indicate that incorporating V into the TiO 2 lattice can effectively lower the activation energy for the lattice oxygen, thereby improving the generation and repair of oxygen vacancies and thus promoting photo-oxidation.

show abstract

Section: Structural Texture Of Vtiomentioning

confidence: 96%

Configuration Effect of Plasmonic Vanadium–Titanium Solid Solutions for Photo-oxidation of Benzyl Alcohol

Gong,

Shi,

Khalid

et al. 2024

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

“…48 According to previous works, the reversible redox process via the V 5+ /V 4+ redox pair provides the active site for the hydroxylation of benzene with H 2 O 2 . 14,15,37,[48][49][50][51][52] Therefore, more V 5+ /V 4+ redox pairs is favorable for accelerating this hydroxylation reaction.…”

Section: Compositional and Structural Informationmentioning

confidence: 99%

H₅PMo₁₀V₂O₄₀ immobilized on functionalized chloromethylated polystyrene by electrostatic interactions: a highly efficient and recyclable heterogeneous catalyst for hydroxylation of benzene

Wang

Fang

Yang

et al. 2016

Catal. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…S9). With the increase of catalyst dosage, the catalytic active center increases, leading to higher reaction rate and phenol yield [42]. However, as the catalyst concentration is further increased to 20 g/L, the phenol yield decreases to 7.2 %, possibly because vanadium is also catalytic for phenol to dihydroxybenzene so that excess vanadium causes lower phenol selectivity [24].…”

Section: Optimization Of Reaction Conditionsmentioning

confidence: 99%

Liquid phase hydroxylation of benzene to phenol over vanadyl acetylacetonate supported on amine functionalized SBA-15

Bao

Jiang

Xing

et al. 2015

Reac Kinet Mech Cat

View full text Add to dashboard Cite

An efficient catalyst for the direct hydroxylation of benzene to phenol with oxygen as the oxidant was developed by immobilizing the homogeneous vanadyl(IV) acetylacetonate (VO(acac) 2 ) on SBA-15 in which the support surface was functionalized by (3-aminopropyl)triethoxysilane. The as-prepared catalyst was characterized by various techniques including field-emission scanning electron microscopy, X-ray diffraction, nitrogen adsorption and desorption, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. The results show that the homogeneous vanadium species can be successfully immobilized on the amine functionalized SBA-15 and exhibits better catalytic performance in the hydroxylation of benzene with oxygen compared to other catalysts reported in the literature. The phenol yield significantly depends on the reaction conditions. Under the optimized reaction conditions, the phenol yield can reach 13.3 %, and the asfabricated V/NH 2 -SBA-15 shows better stability against leaching owning to strong interaction between vanadium atoms and amine group as compared to the V/SBA-15 sample.

show abstract

Cu-doped mesoporous VOx-TiO2 in catalytic hydroxylation of benzene to phenol

Cited by 13 publications

References 50 publications

Configuration Effect of Plasmonic Vanadium–Titanium Solid Solutions for Photo-oxidation of Benzyl Alcohol

Configuration Effect of Plasmonic Vanadium–Titanium Solid Solutions for Photo-oxidation of Benzyl Alcohol

H₅PMo₁₀V₂O₄₀ immobilized on functionalized chloromethylated polystyrene by electrostatic interactions: a highly efficient and recyclable heterogeneous catalyst for hydroxylation of benzene

Liquid phase hydroxylation of benzene to phenol over vanadyl acetylacetonate supported on amine functionalized SBA-15

Contact Info

Product

Resources

About

Cu-doped mesoporous VOx-TiO2 in catalytic hydroxylation of benzene to phenol

Cited by 13 publications

References 50 publications

Configuration Effect of Plasmonic Vanadium–Titanium Solid Solutions for Photo-oxidation of Benzyl Alcohol

Configuration Effect of Plasmonic Vanadium–Titanium Solid Solutions for Photo-oxidation of Benzyl Alcohol

H5PMo10V2O40 immobilized on functionalized chloromethylated polystyrene by electrostatic interactions: a highly efficient and recyclable heterogeneous catalyst for hydroxylation of benzene

Liquid phase hydroxylation of benzene to phenol over vanadyl acetylacetonate supported on amine functionalized SBA-15

Contact Info

Product

Resources

About

H₅PMo₁₀V₂O₄₀ immobilized on functionalized chloromethylated polystyrene by electrostatic interactions: a highly efficient and recyclable heterogeneous catalyst for hydroxylation of benzene