Catalysts for Ethanol Dry Reforming Based on High-Entropy Perovskites | Sciact - CRIS-system of Boreskov Institute of Catalysis

Catalysts for Ethanol Dry Reforming Based on High-Entropy Perovskites Full article

Journal

Journal of Catalysis
ISSN: 0021-9517 , E-ISSN: 1090-2694

Output data

Year: 2025, Article number : 116028, Pages count : 31 DOI: 10.1016/j.jcat.2025.116028

Tags

Bioethanol, carbon dioxide, dry reforming, high-entropy oxides, oxygen diffusion, isotope exchange

Authors

Eremeev Nikita F. ^1,2 , Hanna Semon A. ¹ , Sadovskaya Ekaterina M. ² , Leonova Aleksandra A. ² , Bulavchenko Olga A. ^1,2 , Ishchenko Arcady V. ^1,2 , Prosvirin Igor P. ² , Sadykov Vladislav A. ^1,2 , Bespalko Yuliya N. ^1,2

Affiliations

1	Novosibirsk State University, Novosibirsk 630090, Russia
2	Federal Research Center Boreskov Institute of Catalysis SB RAS, Novosibirsk 630090, Russia

Ethanol dry reforming is a promising way to produce syngas and hydrogen due to utilization of carbon dioxide and ability to produce ethanol using renewable sources. Main problem associated with ethanol dry reforming reaction is coke formation. Coking suppression can be achieved in a few ways including use of catalysts possessing required oxygen transport properties. High entropy oxides are of interest in application as catalysts for ethanol dry reforming and other reactions due to their structural stability, disordering features and tunability of functional properties. In this work, the catalysts based on Ni and multiple doped La manganites are studied. The oxides are synthesized by modified Pechini and citrate techniques, and the catalysts are prepared by wetness impregnation. The samples are characterized by XRD, TEM with EDX analysis, XPS. Oxygen transport and redox properties are studied by temperature-programmed isotope exchange of oxygen and reduction. According to structural and morphological studies, the samples are nanosized and form perovskite-like structure. The surface features of samples were characterized by XPS. The samples demonstrate a moderate oxygen mobility (D* up to ∼10–12 cm2/s at 700 °C) required for catalytic operation and coking suppression. Tests in ethanol dry reforming demonstrated fine performance and good stability in the reaction conditions.

Eremeev N.F. , Hanna S.A. , Sadovskaya E.M. , Leonova A.A. , Bulavchenko O.A. , Ishchenko A.V. , Prosvirin I.P. , Sadykov V.A. , Bespalko Y.N.
Catalysts for Ethanol Dry Reforming Based on High-Entropy Perovskites
Journal of Catalysis. 2025. 116028 :1-31. DOI: 10.1016/j.jcat.2025.116028 OpenAlex

Submitted:	Oct 28, 2024
Accepted:	Feb 14, 2025
Published online:	Feb 17, 2025

OpenAlex:

W4407631803

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