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Licensed Unlicensed Requires Authentication Published by De Gruyter January 30, 2019

Magnetic resonance imaging of catalytically relevant processes

  • Alexandra I. Svyatova

    Alexandra I. Svyatova received her Bachelor’s degree from the NSU in 2017. Since then, she has been working on her Master’s diploma project at the International Tomography Center SB RAS in the group of Prof. Igor V. Koptyug under the supervision of Dr. Kirill V. Kovtunov.

    , Kirill V. Kovtunov

    Kirill V. Kovtunov studied chemistry at the NSU. He completed his PhD in physical chemistry in 2008 at the International Tomography Center SB RAS under the supervision of Prof. Igor V. Koptyug. His research interests include heterogeneous catalysis and utilization of PHIP techniques for NMR/MRI and mechanistic studies of heterogeneous reactions involving hydrogen. Currently, he is the senior scientific researcher in the group of Prof. Igor V. Koptyug.

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    and Igor V. Koptyug

    Igor V. Koptyug received his PhD in 1991. From 1992 to 1995, he was a postdoctoral researcher in the photochemistry group of Prof. N.J. Turro (Columbia University, New York). He earned his Dr. Sci. (Habilitation) degree in catalysis in 2003 and the title of Professor in 2006. Currently, he is the Deputy Director of the International Tomography Center SB RAS. His research interests include signal enhancement in NMR and applications of NMR and MRI in catalysis.

Abstract

The main aim of this article is to provide a state-of-the-art review of the magnetic resonance imaging (MRI) utilization in heterogeneous catalysis. MRI is capable to provide very useful information about both living and nonliving objects in a noninvasive way. The studies of an internal heterogeneous reactor structure by MRI help to understand the mass transport and chemical processes inside the working catalytic reactor that can significantly improve its efficiency. However, one of the serious disadvantages of MRI is low sensitivity, and this obstacle dramatically limits possible MRI application. Fortunately, there are hyperpolarization methods that eliminate this problem. Parahydrogen-induced polarization approach, for instance, can increase the nuclear magnetic resonance signal intensity by four to five orders of magnitude; moreover, the obtained polarization can be stored in long-lived spin states and then transferred into an observable signal in MRI. An in-depth account of the studies on both thermal and hyperpolarized MRI for the investigation of heterogeneous catalytic processes is provided in this review as part of the special issue emphasizing the research performed to date in Russia/USSR.

Award Identifier / Grant number: 17-73-20030

Funding statement: A.I.S. and K.V.K. thank the Russian Science Foundation, Funder Id: 10.13039/501100006769 (grant 17-73-20030) for the support to the MRI studies of HP molecules. I.V.K. thanks the Russian Ministry of Science and Higher Education (project 0267-2019-0004) for the access to NMR facilities.

About the authors

Alexandra I. Svyatova

Alexandra I. Svyatova received her Bachelor’s degree from the NSU in 2017. Since then, she has been working on her Master’s diploma project at the International Tomography Center SB RAS in the group of Prof. Igor V. Koptyug under the supervision of Dr. Kirill V. Kovtunov.

Kirill V. Kovtunov

Kirill V. Kovtunov studied chemistry at the NSU. He completed his PhD in physical chemistry in 2008 at the International Tomography Center SB RAS under the supervision of Prof. Igor V. Koptyug. His research interests include heterogeneous catalysis and utilization of PHIP techniques for NMR/MRI and mechanistic studies of heterogeneous reactions involving hydrogen. Currently, he is the senior scientific researcher in the group of Prof. Igor V. Koptyug.

Igor V. Koptyug

Igor V. Koptyug received his PhD in 1991. From 1992 to 1995, he was a postdoctoral researcher in the photochemistry group of Prof. N.J. Turro (Columbia University, New York). He earned his Dr. Sci. (Habilitation) degree in catalysis in 2003 and the title of Professor in 2006. Currently, he is the Deputy Director of the International Tomography Center SB RAS. His research interests include signal enhancement in NMR and applications of NMR and MRI in catalysis.

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Received: 2018-06-04
Accepted: 2018-12-11
Published Online: 2019-01-30
Published in Print: 2021-01-27

©2019 Walter de Gruyter GmbH, Berlin/Boston

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