Active vanadium(<scp>iv</scp>) species synthesized at low-temperature facilitate excellent performance in low-temperature NO<sub><i>x</i></sub>-catalytic removal

Sun, Liwei; Liu, Peng; Xu, Jiasheng; Liu, Kaijie; Zhang, Zeshu; Zhang, Hongjie; Yang, Xiaojing

doi:10.1039/d3cy00718a

Cited by 3 publications

(3 citation statements)

References 39 publications

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“…The bands at 515.5 eV are assigned to V 4+ species, whereas the bands at 516.9 eV are assigned to V 5+ species. 33,34 The V 4+ /(V 4+ +V 5+ ) ratios of 9FeV/NbTi and FeVO 4 were calculated and listed in Fig. 5.…”

Section: Resultsmentioning

confidence: 99%

Novel FeVO₄ catalyst modified with NbTiO_x for efficient selective catalytic reduction of NO_x with NH₃

Shen,

Lian,

Sheng

et al. 2024

Catal. Sci. Technol.

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Section: Resultsmentioning

confidence: 99%

Novel FeVO₄ catalyst modified with NbTiO_x for efficient selective catalytic reduction of NO_x with NH₃

Shen,

Lian,

Sheng

et al. 2024

Catal. Sci. Technol.

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“…The end station was equipped with three ionization chambers and a seven-element SDD detector after the sample position for transmission and fluorescence mode X-ray absorption spectroscopy. 29 2.4. Computational Details.…”

Section: Methodsmentioning

confidence: 99%

“…This beamline adopted a double-bounce channel-cut Si(111) monochromator or Si(311) for monobeam X-ray absorption spectroscopy. The end station was equipped with three ionization chambers and a seven-element SDD detector after the sample position for transmission and fluorescence mode X-ray absorption spectroscopy …”

Section: Methodsmentioning

confidence: 99%

Ru Dispersed on Oxygen-Defect-Rich CeO₂ Nanorods for Ammonia Decomposition

Teng,

Ma,

Chen

et al. 2024

ACS Appl. Nano Mater.

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Ammonia is recognized as the best carrier for hydrogen storage and transportation. Nanomaterial catalysts have eminent catalytic activity for ammonia decomposition. However, the preparation of low-loading, high-activity noble metal atomically dispersed nanometer ammonia decomposition catalysts and their reaction mechanisms remain obscure. In this work, we report the synthesis of a stable ruthenium (Ru) atomically dispersed catalyst with oxygen-rich defects achieved through hydrogen etching of the support CeO 2 NR nanorods. The oxygen defects result in the catalyst exhibiting a favorable low-temperature catalytic activity and an exceedingly high atom utilization rate for ammonia decomposition. The hydrogen production rate from ammonia decomposition per unit mass of Ru is as high as 2446 mmol H 2 g Ru −1 min −1 at 1 bar, 450 °C, and gas hour space velocity = 12,000 mL g cat −1 h −1 . In this case, the highly dispersed Ru provided enough active sites, while the oxygen defects of the catalyst enhanced the electron transfer tunnel between Ru and the nanorod support under a Schottky contact model. The detailed mechanism of oxygen defects for improving the catalytic performance of ammonia decomposition was studied by DFT modeling. Thus, this work provides a promising strategy to improve the catalytic efficiency of an atomically dispersed Ru nanocatalyst.

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Preparation of VOx/SiO2-dope Copolymer Super-Slippery Surface Composites

Le Liu,

Yang,

Huang

et al. 2024

Polym. Sci. Ser. B

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Active vanadium(iv) species synthesized at low-temperature facilitate excellent performance in low-temperature NO_x-catalytic removal

Abstract: Vanadium-based catalysts have been extensively used to catalyze various reactions, for example, their long-term application in the de-NOx process. Various vanadium species dispersed on carriers with a large surface area...

Cited by 3 publications

References 39 publications

Novel FeVO₄ catalyst modified with NbTiO_x for efficient selective catalytic reduction of NO_x with NH₃

Novel FeVO₄ catalyst modified with NbTiO_x for efficient selective catalytic reduction of NO_x with NH₃

Ru Dispersed on Oxygen-Defect-Rich CeO₂ Nanorods for Ammonia Decomposition

Preparation of VOx/SiO2-dope Copolymer Super-Slippery Surface Composites

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Active vanadium(iv) species synthesized at low-temperature facilitate excellent performance in low-temperature NOx-catalytic removal

Abstract: Vanadium-based catalysts have been extensively used to catalyze various reactions, for example, their long-term application in the de-NOx process. Various vanadium species dispersed on carriers with a large surface area...

Cited by 3 publications

References 39 publications

Novel FeVO4 catalyst modified with NbTiOx for efficient selective catalytic reduction of NOx with NH3

Novel FeVO4 catalyst modified with NbTiOx for efficient selective catalytic reduction of NOx with NH3

Ru Dispersed on Oxygen-Defect-Rich CeO2 Nanorods for Ammonia Decomposition

Preparation of VOx/SiO2-dope Copolymer Super-Slippery Surface Composites

Contact Info

Product

Resources

About

Active vanadium(iv) species synthesized at low-temperature facilitate excellent performance in low-temperature NO_x-catalytic removal

Novel FeVO₄ catalyst modified with NbTiO_x for efficient selective catalytic reduction of NO_x with NH₃

Novel FeVO₄ catalyst modified with NbTiO_x for efficient selective catalytic reduction of NO_x with NH₃

Ru Dispersed on Oxygen-Defect-Rich CeO₂ Nanorods for Ammonia Decomposition