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In Situ FMR Study of the Selective H2S-Oxidation Stability of ε-Fe2O3/SiO2 Catalysts Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Journal Applied Magnetic Resonance
ISSN: 0937-9347 , E-ISSN: 1613-7507
Output data Year: 2019, Volume: 50, Number: 5, Pages: 725–733 Pages count : 9 DOI: 10.1007/s00723-019-1109-3
Authors Yakushkin S.S. 1 , Bukhtiyarova G.A. 1 , Dubrovskiy A.A. 2 , Knyazev Yu.V. 2 , Balaev D.A. 2 , Martyanov O.N. 1
Affiliations
1 Boreskov Institute of Catalysis, Russian Academy of Sciences, Siberian Branch, Lavrentieva 5, Novosibirsk 630090, Russia
2 Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia

Funding (1)

1 Russian Science Foundation 17-12-01111

Abstract: The stability of a catalyst for partial H2S oxidation has been studied by the ferromagnetic resonance (FMR) technique combined with transmission electron microscopy, X-ray diffraction, Mössbauer spectroscopy, and magnetostatic investigations. The ε-Fe2O3 iron oxide nanoparticles supported on silica have been examined for their stability under the selective H2S oxidation conditions. The combination of the physicochemical methods has been used to study the state of reacted catalysts. The ε-Fe2O3 phase has been found to remain stable under the selective H2S oxidation conditions at temperatures up to 300 °C. The active phase state during the catalytic reaction has been explored using in situ FMR experiments. It has been established that the ε-Fe2O3 nanoparticles retain their structure and magnetic properties in the presence of H2S at high temperatures. During the in situ FMR experiments, the ε-Fe2O3 sulfidation process has been studied.
Cite: Yakushkin S.S. , Bukhtiyarova G.A. , Dubrovskiy A.A. , Knyazev Y.V. , Balaev D.A. , Martyanov O.N.
In Situ FMR Study of the Selective H2S-Oxidation Stability of ε-Fe2O3/SiO2 Catalysts
Applied Magnetic Resonance. 2019. V.50. N5. P.725–733. DOI: 10.1007/s00723-019-1109-3 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Nov 1, 2018
Accepted: Dec 25, 2018
Published online: Jan 24, 2019
Published print: May 1, 2019
Identifiers:
publication_identifier.wos_identifier_type WOS:000465202500008
publication_identifier.scopus_identifier_type 2-s2.0-85060766435
publication_identifier.rinz_identifier_type 38647217
publication_identifier.accession_number_identifier_type 2019:686684
publication_identifier.chemical_accession_number_identifier_type 173:314515
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