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Solid-state thermal transformations in mixtures of platinum(II) tetraammine with ammonium chromate and ammonium dichromate

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Inorganic Materials Aims and scope

Abstract

Thermal transformations of 3[Pt(NH3)4]Cl2–(NH4)2CrO4 (I) and 3[Pt(NH3)4]Cl2–2(NH4)2Cr2O7 (II) mixtures in a solid state have been studied by thermal analysis and mass spectrometry in an inert (Ar) atmosphere and air at temperatures from 40 to 550°C. The chemical and phase compositions of the thermolysis products obtained in argon have been determined: Pt and Cr2O3 in mixture I and Pt, a platinum-based Pt1 – y Cr y solid solution, and Cr2O3 in mixture II. The thermal transformation products of mixtures I and II in air consist of two phases: Pt and Cr2O3. It has been shown that interactions in the mixtures proceed through the formation of a metallic chromium phase. The materials obtained in this study can find application as catalysts for low-temperature fuel cells, as well as for organic synthesis processes.

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Authors and Affiliations

  1. Samara National Research University, Moskovskoe sh. 34, Samara, 443086, Russia

    E. V. Fesik

  2. Reaviz Medical University, Chapaevskaya ul. 227, Samara, 443001, Russia

    E. V. Fesik

  3. Institute of Fine Chemical Technologies, Moscow Technological University, pr. Vernadskogo 86, Moscow, 119571, Russia

    T. M. Buslaeva

  4. Chemical and Ecological Education Promotion Nonprofit Partnership, Krivokolennyi per. 12/1, Moscow, 101848, Russia

    T. I. Mel’nikova

  5. Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, 660036, Russia

    L. S. Tarasova

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  1. E. V. Fesik
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  2. T. M. Buslaeva
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  3. T. I. Mel’nikova
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  4. L. S. Tarasova
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Correspondence to E. V. Fesik.

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Original Russian Text © E.V. Fesik, T.M. Buslaeva, T.I. Mel’nikova, L.S. Tarasova, 2017, published in Neorganicheskie Materialy, 2017, Vol. 53, No. 10, pp. 1057–1062.

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Fesik, E.V., Buslaeva, T.M., Mel’nikova, T.I. et al. Solid-state thermal transformations in mixtures of platinum(II) tetraammine with ammonium chromate and ammonium dichromate. Inorg Mater 53, 1033–1038 (2017). https://doi.org/10.1134/S0020168517100065

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  • DOI: https://doi.org/10.1134/S0020168517100065

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