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Synthesis of Pd/C Catalysts: Approaches to Regulating the Structure of Active Sites toward Achieving High Selectivity in Hydrogenation of Organic Compounds

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Abstract

The methods for regulating the physicochemical and catalytic properties of Pd/C compositions by varying their synthesis conditions were reviewed. The effect of the nature of the carbon support, the composition of the palladium precursor and its reduction conditions, and the addition of a second active metal on the formation of palladium sites, their dispersion, electronic state, and catalytic properties in practically important hydrogenation reactions was demonstrated using the results obtained by the authors. These data may be useful for the development of Pd/C catalysts exhibiting high activity and selectivity in the hydrogenation reactions of polyfunctional organic compounds.

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Notes

  1. Jointly developed by the All-Union Research Institute of Carbon Black and the Institute of Catalysis, Siberian Branch of the USSR Academy of Sciences

  2. For more detailed discussion of the synthesis of Pd/C catalysts using Pd PHCs, see the next section.

  3. The TOF calculation was based on the rates of hydrogen consumption during the reaction and on the number of the surface palladium atoms in the samples. For more details on the TOF calculation and on structurally sensitive reactions, see [51, 52].

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ACKNOWLEDGMENTS

We thank A.B. Arbuzov, S.V. Vysotskii, T.I. Gulyaeva, O.V. Ivashchenko, A.V. Kalinkin, T.V. Kireeva, O.V. Maevskaya, A.I. Nizovskii, L.N. Stepanova, V.P. Talzi, M.V. Trenikhin, and A.V. Shilova for conducting the experiments whose results were presented in this review. We express special gratitude to A.V. Lavrenov and S.V. Sysolyatin for participation in selecting the research objects, planning the experiments, and discussing the results.

The research was performed using equipment of the Shared-Use Center “National Center for the Study of Catalysts” at the Boreskov Institute of Catalysis.

Funding

The work was carried out in accordance with the State Program of Boreskov Institute of Catalysis (project no. АААА-А19-119061490024-3).

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Mironenko, R.M., Belskaya, O.B. & Likholobov, V.A. Synthesis of Pd/C Catalysts: Approaches to Regulating the Structure of Active Sites toward Achieving High Selectivity in Hydrogenation of Organic Compounds. Russ J Gen Chem 90, 532–549 (2020). https://doi.org/10.1134/S1070363220030299

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