Research output: Contribution to journal › Article › peer-review
Magnetic resonance imaging of catalytically relevant processes. / Svyatova, Alexandra I.; Kovtunov, Kirill V.; Koptyug, Igor V.
In: Reviews in Chemical Engineering, Vol. 37, No. 1, 01.01.2021, p. 3-29.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Magnetic resonance imaging of catalytically relevant processes
AU - Svyatova, Alexandra I.
AU - Kovtunov, Kirill V.
AU - Koptyug, Igor V.
N1 - Publisher Copyright: © 2019 Walter de Gruyter GmbH, Berlin/Boston 2019. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/1/1
Y1 - 2021/1/1
N2 - 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.
AB - 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.
KW - catalytic reactor
KW - heterogeneous catalysis
KW - microreactors
KW - MRI
KW - parahydrogen-induced polarization
KW - BED REACTORS
KW - HETEROGENEOUS HYDROGENATION
KW - MULTINUCLEAR MRI
KW - MASS-TRANSPORT
KW - LIQUID-PHASE
KW - CATALYST BODIES
KW - PARAHYDROGEN-INDUCED POLARIZATION
KW - METAL-ION COMPLEXES
KW - LIVED SPIN STATES
KW - NMR THERMOMETRY
UR - http://www.scopus.com/inward/record.url?scp=85099340788&partnerID=8YFLogxK
U2 - 10.1515/revce-2018-0035
DO - 10.1515/revce-2018-0035
M3 - Article
AN - SCOPUS:85099340788
VL - 37
SP - 3
EP - 29
JO - Reviews in Chemical Engineering
JF - Reviews in Chemical Engineering
SN - 0167-8299
IS - 1
ER -
ID: 27486061