In Situ Monitoring of Heterogeneous Catalytic Hydrogenation via 129Xe NMR Spectroscopy and Proton MRI

Dudari B. Burueva; Ekaterina V. Pokochueva; Xinpei Wang; Max Filkins; Alexandra Svyatova; Sean P. Rigby; Chengbo Wang; Galina E. Pavlovskaya; Kirill V. Kovtunov; Thomas Meersmann; Igor V. Koptyug

doi:10.1021/acscatal.9b05000

In Situ Monitoring of Heterogeneous Catalytic Hydrogenation via ¹²⁹Xe NMR Spectroscopy and Proton MRI

Dudari B. Burueva, Ekaterina V. Pokochueva, Xinpei Wang, Max Filkins, Alexandra Svyatova, Sean P. Rigby, Chengbo Wang, Galina E. Pavlovskaya, Kirill V. Kovtunov, Thomas Meersmann, Igor V. Koptyug

Department of Electrical and Electronic Engineering

Research output: Journal Publication › Article › peer-review

12 Citations (Scopus)

Abstract

The ability to use molecular hydrogen, H₂, as a buffer gas in spin exchange optical pumping of noble gases enables the production of hydrogen gas containing a low percentile (5%) of hyperpolarized (HP) ¹²⁹Xe as a tracer for in situ NMR spectroscopy of hydrogenation reactions. It is demonstrated that the xenon chemical shift, observed in the porous space of Pt-containing alumina pellets, can be used to monitor the temperature changes under rapidly progressing, nonsteady-state conditions during start-up of the catalytic reaction. Standard proton MR imaging was successfully applied to provide in situ evaluation of conversion for the catalyst used in this work.

Original language	English
Pages (from-to)	1417-1422
Number of pages	6
Journal	ACS Catalysis
Volume	10
Issue number	2
DOIs	https://doi.org/10.1021/acscatal.9b05000
Publication status	Published - 17 Jan 2020

Keywords

NMR thermometry
heterogeneous hydrogenation
hyperpolarization
parahydrogen
xenon

ASJC Scopus subject areas

Catalysis
General Chemistry

UN SDGs

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

Access to Document

10.1021/acscatal.9b05000

Cite this

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title = "In Situ Monitoring of Heterogeneous Catalytic Hydrogenation via 129Xe NMR Spectroscopy and Proton MRI",

abstract = "The ability to use molecular hydrogen, H2, as a buffer gas in spin exchange optical pumping of noble gases enables the production of hydrogen gas containing a low percentile (5%) of hyperpolarized (HP) 129Xe as a tracer for in situ NMR spectroscopy of hydrogenation reactions. It is demonstrated that the xenon chemical shift, observed in the porous space of Pt-containing alumina pellets, can be used to monitor the temperature changes under rapidly progressing, nonsteady-state conditions during start-up of the catalytic reaction. Standard proton MR imaging was successfully applied to provide in situ evaluation of conversion for the catalyst used in this work.",

keywords = "NMR thermometry, heterogeneous hydrogenation, hyperpolarization, parahydrogen, xenon",

author = "Burueva, {Dudari B.} and Pokochueva, {Ekaterina V.} and Xinpei Wang and Max Filkins and Alexandra Svyatova and Rigby, {Sean P.} and Chengbo Wang and Pavlovskaya, {Galina E.} and Kovtunov, {Kirill V.} and Thomas Meersmann and Koptyug, {Igor V.}",

note = "Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

year = "2020",

month = jan,

day = "17",

doi = "10.1021/acscatal.9b05000",

language = "English",

volume = "10",

pages = "1417--1422",

journal = "ACS Catalysis",

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T1 - In Situ Monitoring of Heterogeneous Catalytic Hydrogenation via 129Xe NMR Spectroscopy and Proton MRI

AU - Burueva, Dudari B.

AU - Pokochueva, Ekaterina V.

AU - Wang, Xinpei

AU - Filkins, Max

AU - Svyatova, Alexandra

AU - Rigby, Sean P.

AU - Wang, Chengbo

AU - Pavlovskaya, Galina E.

AU - Kovtunov, Kirill V.

AU - Meersmann, Thomas

AU - Koptyug, Igor V.

PY - 2020/1/17

Y1 - 2020/1/17

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AB - The ability to use molecular hydrogen, H2, as a buffer gas in spin exchange optical pumping of noble gases enables the production of hydrogen gas containing a low percentile (5%) of hyperpolarized (HP) 129Xe as a tracer for in situ NMR spectroscopy of hydrogenation reactions. It is demonstrated that the xenon chemical shift, observed in the porous space of Pt-containing alumina pellets, can be used to monitor the temperature changes under rapidly progressing, nonsteady-state conditions during start-up of the catalytic reaction. Standard proton MR imaging was successfully applied to provide in situ evaluation of conversion for the catalyst used in this work.

KW - NMR thermometry

KW - heterogeneous hydrogenation

KW - hyperpolarization

KW - parahydrogen

KW - xenon

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