Insights into the Reactivity of Gd2−xSrxFe2O7 (x = 0 ÷ 0.4) in CO Radical Hydrogenation

Insights into the Reactivity of Gd2−xSrxFe2O7 (x = 0 ÷ 0.4) in CO Radical Hydrogenation Full article

Journal

Catalysts
ISSN: 2073-4344

Output data

Year: 2023, Volume: 13, Number: 9, Article number : 1256, Pages count : DOI: 10.3390/catal13091256

Authors

Sheshko Tatiana F. ¹ , Borodina Elizaveta M. ¹ , Yafarova Liliya V. ² , Markova Ekaterina B. ¹ , Kryuchkova Tatiana A. ¹ , Cherednichenko Alexander G. ¹ , Zvereva Irina A. ² , Terent’ev Alexander O. ³

Affiliations

1	Department of Physical and Colloidal Chemistry, Faculty of Science, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia
2	Department of Chemical Thermodynamics and Kinetics, Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya nab., 199034 Saint Petersburg, Russia
3	N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospekt, 119991 Moscow, Russia

The effect of strontium substitution in the structure of the complex oxide Gd2SrFe2O7 on the production of light olefins by CO hydrogenation was investigated. Perovskite-type oxides Gd2−xSr1+xFe2O7 (x = 0; 0.1; 0.2; 0.3; 0.4) were synthesized by sol–gel technology and characterized by XRD, Mössbauer spectroscopy, BET specific area, acidity testing, and SEM. The experimental data revealed a correlation between the state of iron atoms, acidity, and catalytic performance. It was found that with an increase in the content of Sr2+ in the perovskite phase, the basicity of the surface and the oxygen diffusion rate increased. This contributed to the CO dissociative adsorption, formation of active carbon, and its further interaction with atomic hydrogen.

Sheshko T.F. , Borodina E.M. , Yafarova L.V. , Markova E.B. , Kryuchkova T.A. , Cherednichenko A.G. , Zvereva I.A. , Terent’ev A.O.
Insights into the Reactivity of Gd2−xSrxFe2O7 (x = 0 ÷ 0.4) in CO Radical Hydrogenation
Catalysts. 2023. V.13. N9. 1256 . DOI: 10.3390/catal13091256 WOS Scopus OpenAlex

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