Simultaneous quantification of Brønsted- and Lewis-acid sites in a USY zeolite

Kevin J. Sutovich; Alan W. Peters; Edward F. Rakiewicz; Richard F. Wormsbecher; Susan M. Mattingly; Karl T. Mueller

doi:10.1006/jcat.1998.2379

Simultaneous quantification of Brønsted- and Lewis-acid sites in a USY zeolite

Kevin J. Sutovich, Alan W. Peters, Edward F. Rakiewicz, Richard F. Wormsbecher, Susan M. Mattingly, Karl T. Mueller

Chemistry

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

48 Scopus citations

Abstract

In this report, experimental methods and calculation procedures are described for direct and simultaneous quantification of the Brønsted- and Lewis-acid site concentrations in a sample of USY zeolite. The concentrations of both types of add sites are characterized by solid-state ³¹P MAS NMR spectroscopy of trimethylphosphine oxide probe molecules. The errors associated with the area measurements in the NMR spectrum, and hence the errors in the concentration measurements reported, are estimated with Monte Carlo simulations applied with spectral line-fitting and deconvolution procedures.

Original language	English (US)
Pages (from-to)	155-158
Number of pages	4
Journal	Journal of Catalysis
Volume	183
Issue number	1
DOIs	https://doi.org/10.1006/jcat.1998.2379
State	Published - 1999

All Science Journal Classification (ASJC) codes

Catalysis
Physical and Theoretical Chemistry

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10.1006/jcat.1998.2379

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title = "Simultaneous quantification of Br{\o}nsted- and Lewis-acid sites in a USY zeolite",

abstract = "In this report, experimental methods and calculation procedures are described for direct and simultaneous quantification of the Br{\o}nsted- and Lewis-acid site concentrations in a sample of USY zeolite. The concentrations of both types of add sites are characterized by solid-state 31P MAS NMR spectroscopy of trimethylphosphine oxide probe molecules. The errors associated with the area measurements in the NMR spectrum, and hence the errors in the concentration measurements reported, are estimated with Monte Carlo simulations applied with spectral line-fitting and deconvolution procedures.",

author = "Sutovich, {Kevin J.} and Peters, {Alan W.} and Rakiewicz, {Edward F.} and Wormsbecher, {Richard F.} and Mattingly, {Susan M.} and Mueller, {Karl T.}",

note = "Funding Information: The authors thank J. Swain for conducting the IPA/TPD experiments, A. Nadjadi for assistance in sample preparation, J. Burnham for ICP analyses, and L. Mueller for helpful and insightful discussions regarding Monte Carlo based error estimation. This report is based in part upon work supported by the National Science Foundation under Grant DMR-9458053 and an Arnold and Mabel Beckman Foundation Young Investigator Award to KTM.",

year = "1999",

doi = "10.1006/jcat.1998.2379",

language = "English (US)",

volume = "183",

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journal = "Journal of Catalysis",

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T1 - Simultaneous quantification of Brønsted- and Lewis-acid sites in a USY zeolite

AU - Sutovich, Kevin J.

AU - Peters, Alan W.

AU - Rakiewicz, Edward F.

AU - Wormsbecher, Richard F.

AU - Mattingly, Susan M.

AU - Mueller, Karl T.

N1 - Funding Information: The authors thank J. Swain for conducting the IPA/TPD experiments, A. Nadjadi for assistance in sample preparation, J. Burnham for ICP analyses, and L. Mueller for helpful and insightful discussions regarding Monte Carlo based error estimation. This report is based in part upon work supported by the National Science Foundation under Grant DMR-9458053 and an Arnold and Mabel Beckman Foundation Young Investigator Award to KTM.

PY - 1999

Y1 - 1999

N2 - In this report, experimental methods and calculation procedures are described for direct and simultaneous quantification of the Brønsted- and Lewis-acid site concentrations in a sample of USY zeolite. The concentrations of both types of add sites are characterized by solid-state 31P MAS NMR spectroscopy of trimethylphosphine oxide probe molecules. The errors associated with the area measurements in the NMR spectrum, and hence the errors in the concentration measurements reported, are estimated with Monte Carlo simulations applied with spectral line-fitting and deconvolution procedures.

AB - In this report, experimental methods and calculation procedures are described for direct and simultaneous quantification of the Brønsted- and Lewis-acid site concentrations in a sample of USY zeolite. The concentrations of both types of add sites are characterized by solid-state 31P MAS NMR spectroscopy of trimethylphosphine oxide probe molecules. The errors associated with the area measurements in the NMR spectrum, and hence the errors in the concentration measurements reported, are estimated with Monte Carlo simulations applied with spectral line-fitting and deconvolution procedures.

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JO - Journal of Catalysis

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ER -

Simultaneous quantification of Brønsted- and Lewis-acid sites in a USY zeolite

Abstract

All Science Journal Classification (ASJC) codes

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