NMR evidence on the role of diffusion in zeolite catalysis

H. Ernst; S. Ernst; J. Kärger; T. Röser; H. B. Schwarz; R. Q. Snurr; J. Weitkamp

doi:10.1016/S0167-2991(06)81292-9

NMR evidence on the role of diffusion in zeolite catalysis

H. Ernst, S. Ernst, J. Kärger, T. Röser, H. B. Schwarz, R. Q. Snurr, J. Weitkamp

Chemical and Biological Engineering

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Abstract

Pulsed field gradient (PFG) NMR is shown to provide direct information about the various modes of molecular propagation in zeolite catalysts. By introducing a generalized Thiele modulus, the effectiveness factors of a catalytic reaction for different modes of molecular propagation can be directly compared with one another. Examples elucidating the potential of PFG NMR to contribute to a better understanding of the intrinsic processes during catalytic reactions are given.

Original language	English (US)
Pages (from-to)	748-755
Number of pages	8
Journal	Studies in Surface Science and Catalysis
Volume	94
Issue number	C
DOIs	https://doi.org/10.1016/S0167-2991(06)81292-9
State	Published - Jan 1 1995

ASJC Scopus subject areas

Catalysis
Condensed Matter Physics
Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/S0167-2991(06)81292-9

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abstract = "Pulsed field gradient (PFG) NMR is shown to provide direct information about the various modes of molecular propagation in zeolite catalysts. By introducing a generalized Thiele modulus, the effectiveness factors of a catalytic reaction for different modes of molecular propagation can be directly compared with one another. Examples elucidating the potential of PFG NMR to contribute to a better understanding of the intrinsic processes during catalytic reactions are given.",

author = "H. Ernst and S. Ernst and J. K{\"a}rger and T. R{\"o}ser and Schwarz, {H. B.} and Snurr, {R. Q.} and J. Weitkamp",

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AU - Ernst, H.

AU - Ernst, S.

AU - Kärger, J.

AU - Röser, T.

AU - Schwarz, H. B.

AU - Snurr, R. Q.

AU - Weitkamp, J.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - Pulsed field gradient (PFG) NMR is shown to provide direct information about the various modes of molecular propagation in zeolite catalysts. By introducing a generalized Thiele modulus, the effectiveness factors of a catalytic reaction for different modes of molecular propagation can be directly compared with one another. Examples elucidating the potential of PFG NMR to contribute to a better understanding of the intrinsic processes during catalytic reactions are given.

AB - Pulsed field gradient (PFG) NMR is shown to provide direct information about the various modes of molecular propagation in zeolite catalysts. By introducing a generalized Thiele modulus, the effectiveness factors of a catalytic reaction for different modes of molecular propagation can be directly compared with one another. Examples elucidating the potential of PFG NMR to contribute to a better understanding of the intrinsic processes during catalytic reactions are given.

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JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

IS - C

ER -

NMR evidence on the role of diffusion in zeolite catalysis

Abstract

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