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Studies of Ultrafine Particles of the Active Component in Deposited Single-Metal and Bimetallic (Pt, Rh)/Al2O3 Catalysts by the X-Ray Method of Pair Distribution Function Analysis

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Abstract

The structure and state of ultrafine particles of the active component in the composition of deposite single-metal- and bimetallic catalysts (Pt, Rh)/Al2O3 are studied using the X-ray method of pair distribution function analysis. It is shown that particles of metallic platinum Pt0 are formed in the Pt/Al2O3 catalyst, and particles of Pt0 and rhodium oxides are formed in the Pt–Rh/Al2O3 catalyst. The determined particle sizes are consistent with electron-microscopy data.

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Funding

The work was carried out within the framework of the state task of the Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences AAAA-A21-121011390053-4. In the work, the equipment of the Collective Use Center of the Siberian Synchrotron and Terahertz Radiation Center based on the Unique Scientific Installation “VEPP-4–VEPP-2000 Complex” at the Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, was used.

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  1. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

    V. P. Pakharukova, L. M. Kovtunova, A. N. Shmakov & E. Yu. Gerasimov

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  1. V. P. Pakharukova
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  2. L. M. Kovtunova
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  3. A. N. Shmakov
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  4. E. Yu. Gerasimov
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Correspondence to V. P. Pakharukova.

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Pakharukova, V.P., Kovtunova, L.M., Shmakov, A.N. et al. Studies of Ultrafine Particles of the Active Component in Deposited Single-Metal and Bimetallic (Pt, Rh)/Al2O3 Catalysts by the X-Ray Method of Pair Distribution Function Analysis. J. Surf. Investig. 17, 1502–1507 (2023). https://doi.org/10.1134/S1027451023060411

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