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The Influence of Fe Substitution in GdFeO3 on Redox and Catalytic Properties

  • XVI INTERNATIONAL CONFERENCE ON THERMAL ANALYSIS AND CALORIMETRY IN RUSSIA
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Abstract

GdMn1 – xFexO3 (x = 0, 0.2, 0.5, 0.8, 1) perovskite oxides were prepared by a sol–gel method. The catalytic activity in dry reforming of methane was examined. XRD, BET, TPR, and TGA techniques have been used to characterize structural properties, reducibility and carbonization of the catalyst. The H2-TPR data show that an increase in the Mn content in the series of GdMn1 – xFexO3 compounds (x = 0, 0.2, 0.5, 0.8, 1) leads to a decrease in the reduction temperature. The study of the catalytic properties in the reaction of dry reforming of methane (DRM) showed that the catalytic activity of the studied compounds depends on the Fe content and increases in the series: GdMnO3 < GdMn0.8Fe0.2O3 < GdMn0.2Fe0.8O3 < GdFeO3.

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ACKNOWLEDGMENTS

The publication has been prepared with the support of the “RUDN University Program 5-100.” The research was performed at the Center of Thermal Analysis and Calorimetry, Research Centre for X‑ray Diffraction Studies and Center for Studies in Surface Science of Research Park of St. Petersburg State University.

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Authors and Affiliations

  1. St. Petersburg State University, 198504, St. Petersburg, Russia

    L. V. Yafarova, O. I. Silyukov & I. A. Zvereva

  2. People’s Friendship University of Russia (RUDN University), 117198, Moscow, Russia

    T. A. Kryuchkova & T. F. Sheshko

Authors
  1. L. V. Yafarova
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  2. O. I. Silyukov
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  3. T. A. Kryuchkova
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  4. T. F. Sheshko
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  5. I. A. Zvereva
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Corresponding author

Correspondence to L. V. Yafarova.

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FUNDING

This work was supported by the scholarship and grant of the President of the Russian Federation (nos. SP-1164.2019.1 and MK-480.2020.3).

CONFLICT OF INTEREST

The authors declare that they have no conflicts of interest.

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Yafarova, L.V., Silyukov, O.I., Kryuchkova, T.A. et al. The Influence of Fe Substitution in GdFeO3 on Redox and Catalytic Properties. Russ. J. Phys. Chem. 94, 2679–2684 (2020). https://doi.org/10.1134/S0036024420130324

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  • DOI: https://doi.org/10.1134/S0036024420130324

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