Influence of the exchanged cation in Pd/BEA and Pd/FAU zeolites for catalytic oxidation of VOCs

H. L. Tidahy; S. Siffert; J. F. Lamonier; R. Cousin; E. A. Zhilinskaya; A. Aboukaïs; B. L. Su; X. Canet; G. De Weireld; M. Frère; J. M. Giraudon; G. Leclercq

doi:10.1016/j.apcatb.2006.02.027

Influence of the exchanged cation in Pd/BEA and Pd/FAU zeolites for catalytic oxidation of VOCs

H. L. Tidahy, S. Siffert, J. F. Lamonier, R. Cousin, E. A. Zhilinskaya, A. Aboukaïs, B. L. Su, X. Canet, G. De Weireld, M. Frère, J. M. Giraudon, G. Leclercq

University of Namur

Research output: Contribution to journal › Article › peer-review

Abstract

0.5 wt% palladium supported on exchanged BEA and FAU zeolites were prepared, characterized and tested in the total oxidation of volatile organic compounds (VOCs). The BEA and FAU zeolites were exchanged with different cations to study the influence of alkali metal cations (Na⁺, Cs⁺) and H⁺ in Pd-based catalysts on propene and toluene total oxidation. The exchange with different cations (Na⁺, Cs⁺) and H⁺ led to a decrease of the surface area and the micropore volume. All Pd/BEA and Pd/FAU zeolites were found to be powerful catalysts for the total oxidation of VOCs. They were active at low temperature and totally selective for CO₂ and H₂O. However, their activity depends significantly on the type of zeolite and on the nature of the charge-compensating cation. The activity order for propene and toluene oxidation on FAU catalysts, Pd/CsFAU > Pd/NaFAU > Pd/HFAU, is the reverse of the activity order on BEA catalysts: Pd/HBEA > Pd/NaBEA > Pd/CsBEA. The catalytic activities can be rationalized in terms of the influence of the electronegativity of the charge-compensating cation on the Pd particles, the Pd dispersion, the PdO reducibility and the adsorption energies for VOCs.

Original language	English
Pages (from-to)	377-383
Number of pages	7
Journal	Applied Catalysis. B: Environmental
Volume	70
Issue number	1-4
DOIs	https://doi.org/10.1016/j.apcatb.2006.02.027
Publication status	Published - 31 Jan 2007

Keywords

Adsorption
Exchanged zeolite
Palladium
Total oxidation of VOC

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.apcatb.2006.02.027

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Tidahy, H. L., Siffert, S., Lamonier, J. F., Cousin, R., Zhilinskaya, E. A., Aboukaïs, A., Su, B. L., Canet, X., De Weireld, G., Frère, M., Giraudon, J. M., & Leclercq, G. (2007). Influence of the exchanged cation in Pd/BEA and Pd/FAU zeolites for catalytic oxidation of VOCs. Applied Catalysis. B: Environmental, 70(1-4), 377-383. https://doi.org/10.1016/j.apcatb.2006.02.027

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title = "Influence of the exchanged cation in Pd/BEA and Pd/FAU zeolites for catalytic oxidation of VOCs",

abstract = "0.5 wt% palladium supported on exchanged BEA and FAU zeolites were prepared, characterized and tested in the total oxidation of volatile organic compounds (VOCs). The BEA and FAU zeolites were exchanged with different cations to study the influence of alkali metal cations (Na+, Cs+) and H+ in Pd-based catalysts on propene and toluene total oxidation. The exchange with different cations (Na+, Cs+) and H+ led to a decrease of the surface area and the micropore volume. All Pd/BEA and Pd/FAU zeolites were found to be powerful catalysts for the total oxidation of VOCs. They were active at low temperature and totally selective for CO2 and H2O. However, their activity depends significantly on the type of zeolite and on the nature of the charge-compensating cation. The activity order for propene and toluene oxidation on FAU catalysts, Pd/CsFAU > Pd/NaFAU > Pd/HFAU, is the reverse of the activity order on BEA catalysts: Pd/HBEA > Pd/NaBEA > Pd/CsBEA. The catalytic activities can be rationalized in terms of the influence of the electronegativity of the charge-compensating cation on the Pd particles, the Pd dispersion, the PdO reducibility and the adsorption energies for VOCs.",

keywords = "Adsorption, Exchanged zeolite, Palladium, Total oxidation of VOC",

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T1 - Influence of the exchanged cation in Pd/BEA and Pd/FAU zeolites for catalytic oxidation of VOCs

AU - Tidahy, H. L.

AU - Siffert, S.

AU - Lamonier, J. F.

AU - Cousin, R.

AU - Zhilinskaya, E. A.

AU - Aboukaïs, A.

AU - Su, B. L.

AU - Canet, X.

AU - De Weireld, G.

AU - Frère, M.

AU - Giraudon, J. M.

AU - Leclercq, G.

PY - 2007/1/31

Y1 - 2007/1/31

N2 - 0.5 wt% palladium supported on exchanged BEA and FAU zeolites were prepared, characterized and tested in the total oxidation of volatile organic compounds (VOCs). The BEA and FAU zeolites were exchanged with different cations to study the influence of alkali metal cations (Na+, Cs+) and H+ in Pd-based catalysts on propene and toluene total oxidation. The exchange with different cations (Na+, Cs+) and H+ led to a decrease of the surface area and the micropore volume. All Pd/BEA and Pd/FAU zeolites were found to be powerful catalysts for the total oxidation of VOCs. They were active at low temperature and totally selective for CO2 and H2O. However, their activity depends significantly on the type of zeolite and on the nature of the charge-compensating cation. The activity order for propene and toluene oxidation on FAU catalysts, Pd/CsFAU > Pd/NaFAU > Pd/HFAU, is the reverse of the activity order on BEA catalysts: Pd/HBEA > Pd/NaBEA > Pd/CsBEA. The catalytic activities can be rationalized in terms of the influence of the electronegativity of the charge-compensating cation on the Pd particles, the Pd dispersion, the PdO reducibility and the adsorption energies for VOCs.

AB - 0.5 wt% palladium supported on exchanged BEA and FAU zeolites were prepared, characterized and tested in the total oxidation of volatile organic compounds (VOCs). The BEA and FAU zeolites were exchanged with different cations to study the influence of alkali metal cations (Na+, Cs+) and H+ in Pd-based catalysts on propene and toluene total oxidation. The exchange with different cations (Na+, Cs+) and H+ led to a decrease of the surface area and the micropore volume. All Pd/BEA and Pd/FAU zeolites were found to be powerful catalysts for the total oxidation of VOCs. They were active at low temperature and totally selective for CO2 and H2O. However, their activity depends significantly on the type of zeolite and on the nature of the charge-compensating cation. The activity order for propene and toluene oxidation on FAU catalysts, Pd/CsFAU > Pd/NaFAU > Pd/HFAU, is the reverse of the activity order on BEA catalysts: Pd/HBEA > Pd/NaBEA > Pd/CsBEA. The catalytic activities can be rationalized in terms of the influence of the electronegativity of the charge-compensating cation on the Pd particles, the Pd dispersion, the PdO reducibility and the adsorption energies for VOCs.

KW - Adsorption

KW - Exchanged zeolite

KW - Palladium

KW - Total oxidation of VOC

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VL - 70

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JO - Applied Catalysis. B: Environmental

JF - Applied Catalysis. B: Environmental

IS - 1-4

ER -

Influence of the exchanged cation in Pd/BEA and Pd/FAU zeolites for catalytic oxidation of VOCs

Abstract

Keywords

UN SDGs

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