Synchrotron infrared micro-spectroscopy of zeolite catalysts

Russell F. Howe; Paul A. Wright; Ivalina Tuxworth; Mark D. Frogley; Gianfelice Cinque

doi:10.1595/205651324x17048925195038

Synchrotron infrared micro-spectroscopy of zeolite catalysts

Russell F. Howe^*, Paul A. Wright, Ivalina Tuxworth, Mark D. Frogley, Gianfelice Cinque

^*Corresponding author for this work

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

Abstract

This article reviews recent work undertaken at the beamline B22 of the Diamond Light Source using infrared micro-spectroscopy to characterise zeolite catalysts and to study their reactivity in real time. The advantage of vibrational micro- spectroscopic analysis when linked to the brightness and spectral band-width of synchrotron infrared light are illustrated. The high spatial resolution means that the uniformity of acid site concentrations within individual large crystals of zeolites and between different crystals can be readily checked, and changes to acid site concentrations within crystals resulting from steam treatment mapped. When an in-situ reaction cell is coupled with mass spectrometric analysis of evolved gases the rapid time response of the method has provided new insight into the initial stages of the conversion of methanol to hydrocarbons over ZSM-5 and SAPO-34 single crystals. Future prospects for applying the method to other types of zeolite catalysed reactions with improved reaction cell design are also discussed.

Original language	English
Pages (from-to)	593-606
Number of pages	14
Journal	Johnson Matthey Technology Review
Volume	In press
Early online date	10 Jan 2024
DOIs	https://doi.org/10.1595/205651324x17048925195038
Publication status	E-pub ahead of print - 10 Jan 2024

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10.1595/205651324x17048925195038Licence: CC BY

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© 2024 Johnson Matthey. This article is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) license. You are free to: share: copy and redistribute the material in any medium or format; adapt: remix, transform, and build upon the material for any purpose, even commercially. Under the following terms: attribution: you must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. No additional restrictions: you may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Final published version, 1.51 MBLicence: CC BY

CRITICAT CDT: Critical Resource Catalysis - CRITICAT
Smith, A. D. (PI), Nolan, S. P. (CoI) & Westwood, N. J. (CoI)
EPSRC
1/05/14 → 31/10/22
Project: Standard

Cite this

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title = "Synchrotron infrared micro-spectroscopy of zeolite catalysts",

abstract = "This article reviews recent work undertaken at the beamline B22 of the Diamond Light Source using infrared micro-spectroscopy to characterise zeolite catalysts and to study their reactivity in real time. The advantage of vibrational micro- spectroscopic analysis when linked to the brightness and spectral band-width of synchrotron infrared light are illustrated. The high spatial resolution means that the uniformity of acid site concentrations within individual large crystals of zeolites and between different crystals can be readily checked, and changes to acid site concentrations within crystals resulting from steam treatment mapped. When an in-situ reaction cell is coupled with mass spectrometric analysis of evolved gases the rapid time response of the method has provided new insight into the initial stages of the conversion of methanol to hydrocarbons over ZSM-5 and SAPO-34 single crystals. Future prospects for applying the method to other types of zeolite catalysed reactions with improved reaction cell design are also discussed.",

author = "Howe, {Russell F.} and Wright, {Paul A.} and Ivalina Tuxworth and Frogley, {Mark D.} and Gianfelice Cinque",

note = "The research leading to these results has received primary funding from the Engineering and Physical Sciences Research Council Centre for Doctoral Training in Critical Resource Catalysis (EP/IO17008/1 and supplementary equipment Grant EP/L016419/1). ScotCHEM, the Society of Chemical Industry (SCI) and Santander - St Leonard's College are thanked for the scholarships provided during Ivalina{\textquoteright}s PhD.",

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doi = "10.1595/205651324x17048925195038",

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AU - Wright, Paul A.

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AU - Frogley, Mark D.

AU - Cinque, Gianfelice

N1 - The research leading to these results has received primary funding from the Engineering and Physical Sciences Research Council Centre for Doctoral Training in Critical Resource Catalysis (EP/IO17008/1 and supplementary equipment Grant EP/L016419/1). ScotCHEM, the Society of Chemical Industry (SCI) and Santander - St Leonard's College are thanked for the scholarships provided during Ivalina’s PhD.

PY - 2024/1/10

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N2 - This article reviews recent work undertaken at the beamline B22 of the Diamond Light Source using infrared micro-spectroscopy to characterise zeolite catalysts and to study their reactivity in real time. The advantage of vibrational micro- spectroscopic analysis when linked to the brightness and spectral band-width of synchrotron infrared light are illustrated. The high spatial resolution means that the uniformity of acid site concentrations within individual large crystals of zeolites and between different crystals can be readily checked, and changes to acid site concentrations within crystals resulting from steam treatment mapped. When an in-situ reaction cell is coupled with mass spectrometric analysis of evolved gases the rapid time response of the method has provided new insight into the initial stages of the conversion of methanol to hydrocarbons over ZSM-5 and SAPO-34 single crystals. Future prospects for applying the method to other types of zeolite catalysed reactions with improved reaction cell design are also discussed.

AB - This article reviews recent work undertaken at the beamline B22 of the Diamond Light Source using infrared micro-spectroscopy to characterise zeolite catalysts and to study their reactivity in real time. The advantage of vibrational micro- spectroscopic analysis when linked to the brightness and spectral band-width of synchrotron infrared light are illustrated. The high spatial resolution means that the uniformity of acid site concentrations within individual large crystals of zeolites and between different crystals can be readily checked, and changes to acid site concentrations within crystals resulting from steam treatment mapped. When an in-situ reaction cell is coupled with mass spectrometric analysis of evolved gases the rapid time response of the method has provided new insight into the initial stages of the conversion of methanol to hydrocarbons over ZSM-5 and SAPO-34 single crystals. Future prospects for applying the method to other types of zeolite catalysed reactions with improved reaction cell design are also discussed.

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DO - 10.1595/205651324x17048925195038

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VL - In press

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EP - 606

JO - Johnson Matthey Technology Review

JF - Johnson Matthey Technology Review

ER -

Synchrotron infrared micro-spectroscopy of zeolite catalysts

Abstract

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CRITICAT CDT: Critical Resource Catalysis - CRITICAT

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