Metal solution precursors: their role during the synthesis of MoVTeNb mixed oxide catalysts

Valente, Jaime S.; Maya-Flores, Etel; Armendáriz‐Herrera, Héctor; Quintana‐Solórzano, Roberto; Nieto, J.M. López

doi:10.1039/c8cy00750k

Cited by 5 publications

(2 citation statements)

References 70 publications

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“…Actually, the yellow color of solutions containing V 5+ (3d 0 ) ions are due to electrons transfer from the oxygen bonding orbitals to the vacant vanadium d orbitals. These charge transfer bands move towards the UV-region when the crystal field splitting of d orbitals decreases [35]. Electronic absorption spectra of were taken with a UV-Vis spectrometer within the range [200-…”

Section: Uv-visible Spectroscopy Measurementsmentioning

confidence: 99%

Synthesis of novel hybrid decavanadate material (NH4)2(H2en)2{V10O28}.4H2O: Characterization, anticorrosion and biological activities

Idboumlik

Kadiri

Hamdi

et al. 2022

Materials Chemistry and Physics

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Section: Uv-visible Spectroscopy Measurementsmentioning

confidence: 99%

Synthesis of novel hybrid decavanadate material (NH4)2(H2en)2{V10O28}.4H2O: Characterization, anticorrosion and biological activities

Idboumlik

Kadiri

Hamdi

et al. 2022

Materials Chemistry and Physics

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“…Currently, the primary methods reported for the preparation of MoVTeNbO x are hydrothermal synthesis [10,16,18], slurry method[6, [19][20][21], and co-precipitation method [5,22], but they suffer from the problems of long time-consuming, poor reproducibility of catalysts, and high requirements of preparation conditions.…”

Section: Introductionmentioning

confidence: 99%

Cr-doped Mesoporous M1 Phase MoVTeNbOx Catalyze Selective Oxidation of Propane to Acrylic Acid

Qu,

Li,

Wang

et al. 2024

Catal Surv Asia

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In this work, we investigated the doping of MoVTeNbO x catalysts with a small amount of Cr using spray drying. The effect of Cr doping on their crystalline phase structure, physicochemical properties, and catalytic propane oxidation to acrylic acid performance was investigated. The results showed that the catalyst samples were prepared by spray drying from rod stacking into unique spherical shapes. In addition, Cr doping induced a change in the mesopore structure formed by rod stacking, reducing the pore radius of the catalysts from 5-10 nm to 2-4 nm. Meanwhile, Cr doping dramatically reduced the average particle size of the motivations, decreasing the rod cross-sectional area of the catalysts from 234.21 nm to 134.96 nm and the rod length from 1.096 µm to 485.71 nm, which signi cantly increased the number of ( 001) active crystalline surfaces. Not only that, Cr doping increased the V 5+ content on the catalyst surface from 35.8-72.6%. Together with the mesoporous structure, the Cr-doped MoVTeNbO x showed excellent performance in catalyzing the propane-selective acrylic acid production reaction. Among them, the S-3 sample (V: Cr = 1:0.015) increased the selectivity of acrylic acid from 67.5-84.3% and the acrylic acid yield from 26.4-43.2% when the reaction temperature was 380°C.

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Crystal structure and catalytic performance for direst oxidation of propylene to acrylic acid of MoVTeNbOx prepared by high-pressure hydrothermal synthesis

Wang

Fan²,

Wang³

et al. 2022

Resources Chemicals and Materials

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Metal solution precursors: their role during the synthesis of MoVTeNb mixed oxide catalysts

Abstract: Crystals of MoVTeNbOxM1 phase for the ODH of ethane to ethylene.

Cited by 5 publications

References 70 publications

Synthesis of novel hybrid decavanadate material (NH4)2(H2en)2{V10O28}.4H2O: Characterization, anticorrosion and biological activities

Synthesis of novel hybrid decavanadate material (NH4)2(H2en)2{V10O28}.4H2O: Characterization, anticorrosion and biological activities

Cr-doped Mesoporous M1 Phase MoVTeNbOx Catalyze Selective Oxidation of Propane to Acrylic Acid

Crystal structure and catalytic performance for direst oxidation of propylene to acrylic acid of MoVTeNbOx prepared by high-pressure hydrothermal synthesis

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