Fabrication of high-silica Cu/ZSM-5 with confinement encapsulated Cu-based active species for NH3-SCR

Wang, Yaoyao; Ji, Xiangfei; Meng, Hao; Qu, Lingduo; Wu, Xu

doi:10.1016/j.catcom.2020.105969

Cited by 23 publications

(8 citation statements)

References 34 publications

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“…The activity of coreshell samples was found to be much better that that of physically mixed catalysts. Similarly, Wang et al [100] prepared a high-silica Cu-ZSM-5-PAD catalyst through effectively induced polymer (polyacrylamide) assisted deposition (PAD) strategy. The satisfactory hydrothermal stability (after treatment at 750 °C for 24 h NO x conversion exceeded 80 % between 240-390 °C Figure 2.…”

Section: Effects Of Sulfur Poisoning and Hydrothermal Stabilitymentioning

confidence: 99%

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation

Jabłońska,

Potter,

Beale

2024

ChemCatChem

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Transition metal‐containing MFI‐based catalysts are widely investigated in the selective catalytic reduction of NOx with ammonia (NH3‐SCR‐DeNOx), and the selective catalytic oxidation of ammonia (NH3‐SCO) into nitrogen and water vapor. While MFI‐based catalysts are less intensively studied than smaller pore zeolites (i.e., chabazite, CHA) they are still used commercially for these processes and are of great interest for future study in particular to better understand structure‐activity relationships. Hierarchically porous MFI catalysts (containing both micropores and mesopores) often show enhanced catalytic properties compared to conventional (microporous) materials in both NH3‐SCR‐DeNOx and NH3‐SCO. Thus, a critical overview of the current understanding of the salient physico‐chemical properties that influence the performance of these catalysts is examined. Furthermore, strategies for the development of ZSM‐5 based catalysts with enhanced catalytic lifetime, supported by the investigations of reaction mechanisms are reviewed and discussed.

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Section: Effects Of Sulfur Poisoning and Hydrothermal Stabilitymentioning

confidence: 99%

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation

Jabłońska,

Potter,

Beale

2024

ChemCatChem

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“…Therefore, Cu-LTA showed better activity under fast SCR conditions than Cu-SSZ-13. Wang et al [48] prepared Cu/ZSM-5-PAD and Cu/ZSM-5-CIM catalysts using a polyacrylic acid assisted deposition strategy (PAD) and conventional impregnation method (CIM), respectively. As a result, Cu/ZSM-5-PAD showed excellent catalytic performance.…”

Section: Confined Effect On Catalytic Activitymentioning

confidence: 99%

Confined Catalysts Application in Environmental Catalysis: Current Research Progress and Future Prospects

et al. 2021

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“…Recent studies establish a good kinetic model or conduct bench tests to study the performance of Cu-zeolite SCR catalysts. [24][25][26][27][28][29][30][31][32][33] The core of the performance research of copper-zeolite SCR catalyst lies in its catalytic reaction-mass transfer analysis. Scholars have studied the influence of mass transfer limitation on SCR reactions, and some of them have reported the existence of mass transfer limitation.…”

Section: Introductionmentioning

confidence: 99%

Theoretical analyses of NH₃‐SCR reaction‐mass transfer over Cu‐ZSM‐5

Zhong

Zuo

et al. 2022

Can J Chem Eng

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NH3‐selective catalytic reduction (NH3‐SCR) is a very effective technical means to control NOx emissions from diesel engines, and Zeolite Selony Mobil No. 5 (SiO2/Al2O3 ratio 53:1) ion exchanged with Cu (Cu‐ZSM‐5) provides support for the high performance of NH3‐SCR within a wide temperature window under diesel engine operating conditions. The mechanism of the NH3‐SCR reaction based on Cu‐ZSM‐5 is established. Resistance analysis, effective factor analysis, and characteristic time analysis are used to analyze the influence of external mass transfer limitation and washcoat diffusion limitation on NH3‐SCR reaction and the transition between the washcoat diffusion control regime, the external mass transfer control regime, and the kinetic control regime of the NH3‐SCR over Cu‐ZSM‐5. It provides the basis for the optimization of the catalyst structure and the support for the improvement of NH3‐SCR performance.

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Fabrication of high-silica Cu/ZSM-5 with confinement encapsulated Cu-based active species for NH3-SCR

Cited by 23 publications

References 34 publications

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation

Confined Catalysts Application in Environmental Catalysis: Current Research Progress and Future Prospects

Theoretical analyses of NH₃‐SCR reaction‐mass transfer over Cu‐ZSM‐5

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Fabrication of high-silica Cu/ZSM-5 with confinement encapsulated Cu-based active species for NH3-SCR

Cited by 23 publications

References 34 publications

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH3‐SCR‐DeNOx and NH3 oxidation

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH3‐SCR‐DeNOx and NH3 oxidation

Confined Catalysts Application in Environmental Catalysis: Current Research Progress and Future Prospects

Theoretical analyses of NH3‐SCR reaction‐mass transfer over Cu‐ZSM‐5

Contact Info

Product

Resources

About

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation

Recent Progress in the Application of Transition‐Metal Containing MFI topologies for NH₃‐SCR‐DeNO_x and NH₃ oxidation

Theoretical analyses of NH₃‐SCR reaction‐mass transfer over Cu‐ZSM‐5