Pt/CeO2–ZrO2 catalyst for dimethyl ether and dimethoxymethane partial oxidation to syngas: in-situ Raman spectroscopy structural studies
G. M. Korableva,
D. A. Agarkov,
S. D. Badmaev,
D. S. Katrich,
A. V. Samoilov,
P. V. Snytnikov,
I. I. Tartakovskii,
S. I. Bredikhin https://doi.org/10.17586/2220-8054-2025-16-4-491-497
Abstract
This paper is devoted to studies of the conversion mechanism of carbon-containing fuels on multicomponent catalyst with the composition of 1.9 wt. % Pt–Ce0.75Zr0.25O2 (Pt/CZ) using in-situ Raman spectroscopy (RS) and catalytic activity measurements. It was found that during heating and transition from inert atmosphere to reducing conditions, oxygen escapes from the crystal lattice of the samples. This leads to formation of oxygen vacancies in the near-surface layer of the catalyst and increasing Ce3+ concentration by more than 20 % already at a temperature of 400◦C. Meanwhile, when returning to the initial external conditions (temperature, gas mixture), a reversible process occurs. The use of Pt/CZ catalysts allows to obtain up to 35 vol % H2 and about 25 vol % CO in syngas during dimethyl ether and dimethoxymethane partial oxidation. Thus, Pt/CZ catalysts are of particular interest as efficient catalysts for the conversion of hydrocarbons to synthesis gas, suitable for feeding SOFC stacks.
About the Authors
G. M. Korableva
Osipyan Institute of Solid State Physics RAS
Russian Federation
Russian Federation
Galina M. Korableva
Acad. Osipyana, 2, Chernogolovka, Moscow District, 142432, Russia
D. A. Agarkov
Osipyan Institute of Solid State Physics RAS;
Moscow Institute of Physics and Technology
Russian Federation
Russian Federation
Dmitrii A. Agarkov
Acad. Osipyana, 2, Chernogolovka, Moscow District, 142432, Russia
Institutskiy per., 9, Dolgoprudny, Moscow District, 141701, Russia
S. D. Badmaev
Boreskov Institute of Catalysis SB RAS
Russian Federation
Russian Federation
Sukhe D. Badmaev
Lavrentiev Ave., 5, Novosibirsk, 630090, Russia
D. S. Katrich
Osipyan Institute of Solid State Physics RAS
Russian Federation
Russian Federation
Denis S. Katrich
Acad. Osipyana, 2, Chernogolovka, Moscow District,
142432, Russia
A. V. Samoilov
Osipyan Institute of Solid State Physics RAS
Russian Federation
Russian Federation
Alexandr V. Samoilov
Acad. Osipyana, 2, Chernogolovka, Moscow District, 142432, Russia
P. V. Snytnikov
Boreskov Institute of Catalysis SB RAS
Russian Federation
Russian Federation
Pavel V. Snytnikov
Lavrentiev Ave., 5, Novosibirsk, 630090, Russia
I. I. Tartakovskii
Osipyan Institute of Solid State Physics RAS
Russian Federation
Russian Federation
Ilya I. Tartakovskii
Acad. Osipyana, 2, Chernogolovka, Moscow District,
142432, Russia
S. I. Bredikhin
Osipyan Institute of Solid State Physics RAS
Russian Federation
Russian Federation
Sergey I. Bredikhin
Acad. Osipyana, 2, Chernogolovka, Moscow District,
142432, Russia
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Review
For citations:
Korableva G.M., Agarkov D.A., Badmaev S.D., Katrich D.S., Samoilov A.V., Snytnikov P.V., Tartakovskii I.I., Bredikhin S.I. Pt/CeO2–ZrO2 catalyst for dimethyl ether and dimethoxymethane partial oxidation to syngas: in-situ Raman spectroscopy structural studies. Nanosystems: Physics, Chemistry, Mathematics. 2025;16(4):491-497. https://doi.org/10.17586/2220-8054-2025-16-4-491-497
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