Metal-organic chemical vapor deposition of Cu(acac)2 for the synthesis of Cu/ZSM-5 catalysts for the oxidation of toluene

Zhang, Yong; Zhang, Huiping; Yan, Ying

doi:10.1016/j.micromeso.2017.11.006

Cited by 36 publications

(4 citation statements)

References 68 publications

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“…The O 1s XPS spectra of Cu–SSZ-13–O and Cu–SSZ-13–O–H catalysts are shown in SI Figure S3A. Each spectrum could be fitted into two peaks, assigned to the lattice oxygen (O latt ) at 530.8 eV and the adsorbed oxygen (O ads ) at 531.9 eV . As is known to all, O ads is more active in oxidation reactions than O latt owing to its higher mobility.…”

Section: Resultsmentioning

confidence: 99%

“…Each spectrum could be fitted into two peaks, assigned to the lattice oxygen (O latt ) at 530.8 eV and the adsorbed oxygen (O ads ) at 531.9 eV. 24 As is known to all, O ads is more active in oxidation reactions than O latt owing to its higher mobility. The ratio of O ads / O latt for Cu−SSZ-13−O−H (5.39) was higher than that for Cu−SSZ-13−O (3.09), suggesting that the surface active oxygen species could be improved by post-treatment with dilute HNO 3 .…”

Section: Introductionmentioning

confidence: 99%

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Excellent Activity and Selectivity of One-Pot Synthesized Cu–SSZ-13 Catalyst in the Selective Catalytic Oxidation of Ammonia to Nitrogen

Zhang

Chang

You

et al. 2018

Environ. Sci. Technol.

115

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One-pot synthesized Cu-SSZ-13 catalyst treated with dilute HNO achieved superior activity and selectivity in the selective catalytic oxidation (SCO) of NH to nitrogen, in comparison with other zeolite-based catalysts and most of metal-oxide catalysts. Furthermore, the catalyst showed the similar or even higher catalytic activity than the partial noble-metal catalysts, and meanwhile its N selectivity was superior to most noble-metal catalysts. The characterization results demonstrated that more Cu ions existing in Cu-SSZ-13 catalyst were advantageous to its NH-SCO activity. The in situ DRIFTS results indicated that the reactivity of NH species adsorbed on Lewis and Brønsted acid sites over Cu-SSZ-13-O-H catalyst depended on the reaction temperature. The results of this study suggest the one-pot synthesized Cu-SSZ-13 is a promising NH-SCO catalyst for practical application, either mobile or stationary pollution sources.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Excellent Activity and Selectivity of One-Pot Synthesized Cu–SSZ-13 Catalyst in the Selective Catalytic Oxidation of Ammonia to Nitrogen

Zhang

Chang

You

et al. 2018

Environ. Sci. Technol.

115

View full text Add to dashboard Cite

show abstract

“…Some synthesis methods and detectable gases are also shown. In turn, metal oxide nanoparticles are produced by reducing the size and separating the bulk materials into small particles by various physical and chemical methods such as sputtering [15], thermal evaporation [16], pulsed laser ablation [17] and mechanical (milling and grinding) [18], chemical vapor deposition (CVD) [19], sol-gel [20,21], hydrothermal synthesis [22] and solution combustion [23]. Electrospinning is a versatile and flexible method for obtaining nanofibers.…”

Section: Introductionmentioning

confidence: 99%

Gas Sensitive Materials Based on Polyacrylonitrile Fibers and Nickel Oxide Nanoparticles

et al. 2022

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The results of the synthesis of PAN/NiO composite fibers by the electrospinning method are presented. The electrospinning installation included a rotating drum collector for collecting fibers. Nickel oxide nanoparticles were synthesized by solution combustion synthesis from nickel nitrate and urea. It was shown that monophase NiO nanoparticles with average particle sizes of 154 nm could be synthesized by this method. NiO nanoparticles were investigated by X-ray diffraction analysis and scanning electron microscopy. Based on NiO nanoparticles, composite PAN/NiO fibers were obtained by electrospinning. The obtained composite fibers were modified with heat treatment (stabilization and carbonization) processes. Obtained C/NiO fibers were investigated by SEM, and EDAX. It was shown that obtained composite fibers could be used for the detection of acetone and acetylene in air. These results show that C/NiO based electrospun fibers have potential applications in gas sensors.

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“…[47] During the past years, MOCVD has been mostly used in fabrication of thin-layer electronics in the semiconductors industry. Some existing literature about catalyst preparation by means of MOCVD for different chemical reactions, such as catalytic oxidation of toluene, [48] ethyl acetate, [49] and cyclohexane, [50] have shown promising results. However, implementing this method for catalyst preparation still is not fully developed.…”

Section: Introductionmentioning

confidence: 99%

Strong Promoting Effect of Gold Nanoparticles on the CO Abatement Catalytic Activity of CoO_x/Clay‐Bonded SiC Catalysts Produced by AA‐MOCVD Method Using Co(acac)₂ as Precursor

et al. 2020

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Clay-bonded SiC supported cobalt oxide catalysts were produced by the aerosol-assisted metal organic chemical vapor deposition method (AA-MOCVD) using Co(acac) 2 as precursor. Deposition temperatures 270 and 300°C were the most appropriate for the synthesis of a composite catalyst of high activity for the CO conversion reaction. A cone-shaped crystal habit is the dominant morphology. The catalysts were decorated with Au nanoparticles (NPs) of sizes in the range of 5-10 nm. This substantially improved the activity of the catalysts, lowering the onset temperature of activity by about 50°C. Ambient-pressure X-ray photoelectron spectroscopy (APXPS) was used to investigate in situ the electronic state of cobalt and gold during CO oxidation. APXPS results show that while Au remains in the metallic state during the reaction, it enhances the reduction of Co 3 + to Co 2 +. Au NPs adsorb CO molecules from the gas phase and supply them to the neighbor cobalt oxide particles.

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Metal-organic chemical vapor deposition of Cu(acac)2 for the synthesis of Cu/ZSM-5 catalysts for the oxidation of toluene

Cited by 36 publications

References 68 publications

Excellent Activity and Selectivity of One-Pot Synthesized Cu–SSZ-13 Catalyst in the Selective Catalytic Oxidation of Ammonia to Nitrogen

Excellent Activity and Selectivity of One-Pot Synthesized Cu–SSZ-13 Catalyst in the Selective Catalytic Oxidation of Ammonia to Nitrogen

Gas Sensitive Materials Based on Polyacrylonitrile Fibers and Nickel Oxide Nanoparticles

Strong Promoting Effect of Gold Nanoparticles on the CO Abatement Catalytic Activity of CoO_x/Clay‐Bonded SiC Catalysts Produced by AA‐MOCVD Method Using Co(acac)₂ as Precursor

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Metal-organic chemical vapor deposition of Cu(acac)2 for the synthesis of Cu/ZSM-5 catalysts for the oxidation of toluene

Cited by 36 publications

References 68 publications

Excellent Activity and Selectivity of One-Pot Synthesized Cu–SSZ-13 Catalyst in the Selective Catalytic Oxidation of Ammonia to Nitrogen

Excellent Activity and Selectivity of One-Pot Synthesized Cu–SSZ-13 Catalyst in the Selective Catalytic Oxidation of Ammonia to Nitrogen

Gas Sensitive Materials Based on Polyacrylonitrile Fibers and Nickel Oxide Nanoparticles

Strong Promoting Effect of Gold Nanoparticles on the CO Abatement Catalytic Activity of CoOx/Clay‐Bonded SiC Catalysts Produced by AA‐MOCVD Method Using Co(acac)2 as Precursor

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Strong Promoting Effect of Gold Nanoparticles on the CO Abatement Catalytic Activity of CoO_x/Clay‐Bonded SiC Catalysts Produced by AA‐MOCVD Method Using Co(acac)₂ as Precursor