Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
In Situ Monitoring of Heterogeneous Catalytic Hydrogenation via 129Xe NMR Spectroscopy and Proton MRI. / Burueva, Dudari B.; Pokochueva, Ekaterina V.; Wang, Xinpei и др.
в: ACS Catalysis, Том 10, № 2, 17.01.2020, стр. 1417-1422.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
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.
N1 - Publisher Copyright: © 2019 American Chemical Society. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/1/17
Y1 - 2020/1/17
N2 - 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.
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 - heterogeneous hydrogenation
KW - hyperpolarization
KW - NMR thermometry
KW - parahydrogen
KW - xenon
KW - VISUALIZATION
KW - REACTORS
KW - COMBUSTION
KW - TEMPERATURE-DEPENDENCE
KW - CHEMICAL-SHIFTS
KW - NUCLEAR-MAGNETIC-RESONANCE
KW - THERMOMETRY
KW - PHASE
KW - XENON NMR
KW - PARAHYDROGEN-INDUCED POLARIZATION
UR - http://www.scopus.com/inward/record.url?scp=85078653902&partnerID=8YFLogxK
U2 - 10.1021/acscatal.9b05000
DO - 10.1021/acscatal.9b05000
M3 - Article
AN - SCOPUS:85078653902
VL - 10
SP - 1417
EP - 1422
JO - ACS Catalysis
JF - ACS Catalysis
SN - 2155-5435
IS - 2
ER -
ID: 23263307