Abstract
Catalytic properties of GdFeO3 and GdMnO3 perovskite-type oxides in CO hydrogenation processes is conducted. Complex oxides Gd(Fe/Mn)O3 are synthesized by the sol–gel technology and characterized by X-ray diffraction, temperature-programmed reduction, and scanning electron microscopy. It is found that the iron-containing catalyst has fairly high catalytic characteristics; therefore, it provides lower temperatures of carbon monoxide hydrogenation. The presence of manganese in the catalyst leads to an increase in light olefin selectivity compared with the sample containing iron at the B-site. It is assumed that gadolinium cations are responsible for dissociative chemisorption, while iron and manganese cations are responsible for the formation of atomic hydrogen. The two catalysts exhibit resistance to carbon deposition.
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ACKNOWLEDGMENTS
The physicochemical studies were conducted using the equipment of the Thermogravimetric and Calorimetric Research Center, the Center for X-ray Diffraction Studies, the Center for Physical Methods of Surface Investigation, and the Interdisciplinary Resource Center for Nanotechnology of the St. Petersburg State University Research Park.
Funding
This work was supported by Russian Foundation for Basic Research, project no. 17-03-00647.Preparation of the publication was supported by the RUDN University Program 5-100.
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ADDITIONAL INFORMATION
T.F. Sheshko, ORCID: https://orcid.org/0000-0003-4176-4085
E.B. Markova, ORCID: https://orcid.org/0000-0003-2735-2893
A.A. Sharaeva, ORCID: https://orcid.org/0000-0001-6465-7368
T.A. Kryuchkova, ORCID: https://orcid.org/0000-0001-6810-9756
I.A. Zvereva, ORCID: http://orcid.org/0000-0002-6898-3897
I.V. Chislova, ORCID: http://orcid.org/0000-0001-5212-5014
L.V. Yafarova, ORCID: http://orcid.org/0000-0001-7572-2209
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Translated by M. Timoshinina
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Sheshko, T.F., Markova, E.B., Sharaeva, A.A. et al. Carbon Monoxide Hydrogenation over Gd(Fe/Mn)O3 Perovskite-Type Catalysts. Pet. Chem. 59, 1307–1313 (2019). https://doi.org/10.1134/S0965544119120107
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DOI: https://doi.org/10.1134/S0965544119120107