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Inorganic Materials

, Volume 54, Issue 12, pp 1299–1307 | Cite as

Solid-State Thermal Transformations in a Mixture of Palladium Tetraammine Dichloride with Ammonium Chromate

  • E. V. FesikEmail author
  • T. M. Buslaeva
  • T. I. Mel’nikova
  • L. S. Tarasova
Article
  • 11 Downloads

Abstract

Solid-state transformations of a 3[Pd(NH3)4]Cl2 + (NH4)2CrO4 mixture at temperatures from 40 to 550°C in various media have been studied by thermal analysis and mass spectrometry. The results demonstrate that the solid thermolysis product obtained in an argon atmosphere consists of a single phase: palladium-based Pd1 – xCrx solid solution isostructural with palladium and having a unit-cell parameter a = 3.897(2) Å. Its formation proceeds through the formation of metallic Pd and Cr, as evidenced by the absence of chromium oxide phases in all of the solid intermediate thermolysis products. The solid thermolysis product obtained in air consists of the phases Pd and PdO. A model has been proposed for the transformations of the 3[Pd(NH3)4]Cl2 + (NH4)2CrO4 mixture through the formation of metallic palladium and chromium.

Keywords:

palladium chromium bimetallic particles catalysts thermolysis solid solution 

Notes

REFERENCES

  1. 1.
    Ellert, O.G., Tsodikov, M.V., Nikolaev, S.A., and Novotortsev, V.M., Bimetallic alloys in the heterogeneous catalysis of industrially important reactions: synergism and structural organization of active components, Usp. Khim., 2014, vol. 83, no. 8, pp. 718–723.CrossRefGoogle Scholar
  2. 2.
    Coq, B. and Figueras, F., Bimetallic palladium catalysts: influence of the co-metal on the catalyst performance, J. Mol. Catal. A: Chem., 2001, vol. 173, nos. 1–2, pp. 117–134. doi 10.1016/S1381-1169(01)00148-0CrossRefGoogle Scholar
  3. 3.
    Wen, W., Li, C., Li, W., and Tian, Y., Carbon-supported Pd–Cr electrocatalysts for the electrooxidation of formic acid that demonstrate high activity and stability, Electrochim. Acta, 2013, vol. 109, pp. 201–206. doi 10.1016/j.electacta.2013.07.137CrossRefGoogle Scholar
  4. 4.
    Zhang, L., McCullen, E.F., Rahman, Md H., et al., Response to hydrogen of a metal/AlN/Si thin film structure: effects of composition and structure of a combination Pd–Cr gate, Sens. Actuators, B, 2006, vol. 113, no. 2, pp. 843–851. doi 10.1016/j.snb.2005.03.115CrossRefGoogle Scholar
  5. 5.
    Ouchaib, T., Moraweck, B., Massardier, J., and Renouprez, A., Charcoal supported palladium and palladium–chromium catalysts: a comparison in the hydrogenation of dienes with silica supported metals, Catal. Today, 1990, vol. 7, no. 2, pp. 191–198. doi 10.1016/0920-5861(90)85017-ICrossRefGoogle Scholar
  6. 6.
    Borgna, A., Moraweck, B., Massardier, J., and Renouprez, A., New supported palladium–chromium catalysts: characterization and catalytic properties, J. Catal., 1991, vol. 128, no. 1, pp. 99–112. doi 10.1016/0021-9517(91)90070-KCrossRefGoogle Scholar
  7. 7.
    Iglesias-Juez, A., Martínez-Arias, A., Hungría, A.B., et al., Influence of the nature of the Ce-promoter on the behavior of Pd and Pd–Cr TWC systems, App. Catal., A, 2004, vol. 259, no. 2, pp. 207–220. doi 10.1016/j.apcata.2003.09.020Google Scholar
  8. 8.
    Sankar, M., Dimetratos, N., Miedziak, P.J., Wells, P., Keely, C., and Hutchings, G., Design in bimetallic catalysts for a green and sustainable future, Chem. Soc. Rev., 2012, vol. 41, pp. 8099–8139. doi 10.1039/c2cs35296fCrossRefGoogle Scholar
  9. 9.
    Fesik, E.V., Grebnev, V.V., and Mal’chikov, G.D., Thermolysis of ruthenium(II, III) ammoniates in aqueous solutions at elevated temperatures and in a solid state, Vestn. Mosk. Inst. Tonkoi Khim. Tekhnol., 2008, vol. 3, no. 3, pp. 70–74.Google Scholar
  10. 10.
    Podkorytov, A.L., Shtin, S.A., Timofeev, A.L., and Yurovskaya, N.L., Solid-state synthesis and properties of Ni4 – xZrx/2Nb2O9, Inorg. Mater., 2015, vol. 51, no. 8, pp. 816–819. doi 10.1134/S0020168515080142CrossRefGoogle Scholar
  11. 11.
    Egorov, N.B., Eremin, L.P., Larionov, A.M., and Usov, V.F., Thermolysis of lead thiosulfate thiourea complexes, Inorg. Mater., 2010, vol. 46, no. 11, pp. 1248–1253. doi 10.1134/S0020168510110166CrossRefGoogle Scholar
  12. 12.
    Kobyakov, V.P., Barinova, T.V., and Sichinava, M.A., Phase relations in the TiO2–CsNO3 system between 550 and 1140 K, Inorg. Mater., 2011, vol. 47, no. 13, pp. 290–295. doi 10.1134/S0020168511020087CrossRefGoogle Scholar
  13. 13.
    Palatnikov, M.N., Sidorov, N.V., and Kalinnikov, V.T., Mechanisms of solid-state reactions underlying the synthesis of phase-pure lithium niobate, Inorg. Mater., 2011, vol. 47, no. 7, pp. 768–773. doi 10.1134/S0020168511060185CrossRefGoogle Scholar
  14. 14.
    Shubin, Yu.V., Zadesenets, A.V., Venediktov, A.B., and Korenev, S.V., Double complex salts [M(NH3)5Cl][M’Br4] (M = Rh, Ir, Co, Cr, Ru; M’ = Pt, Pd): synthesis, X-ray diffraction characterization, and thermal properties, Russ. J. Inorg. Chem., 2006, vol. 51, no. 2, pp. 202–210.CrossRefGoogle Scholar
  15. 15.
    Zadesenets, A.V., Khranenko, S.P., Shubin, Yu.V., Baidina, I.A., and Korenev, S.V., Complex salts [Pd(NH3)4](ReO4)2 and [Pd(NH3)4](MnO4)2: synthesis, structure, and thermal properties, Russ. J. Coord. Chem., 2006, vol. 32, no. 5, pp. 374–379.CrossRefGoogle Scholar
  16. 16.
    Korenev, S.V., Venediktov, A.B., Shubin, Yu.V., et al., Synthesis and structure of double platinum group metal complexes as precursors to metallic materials, Zh. Strukt. Khim., 2003, vol. 44, no. 1, pp. 58–73.Google Scholar
  17. 17.
    Smirnov, I.I., Ryumin, A.I., and Blokhina, M.L., Thermal transformations of [Pd(NH3)2Cl2] in various gaseous atmospheres, Zh. Neorg. Khim., 1985, vol. 30, no. 12, pp. 3139–3143.Google Scholar
  18. 18.
    Zarazhevskii, V.I., Grebnev, V.V., Fesik, E.V., and Mal’chikov, G.D., Solid-state reactions of platinum(II) and palladium(II) tetraammines with ammonium perrhenate in air and an inert atmosphere, Vestn. Mosk. Inst. Tonkoi Khim. Tekhnol., 2010, vol. 5, no. 6, pp. 70–75.Google Scholar
  19. 19.
    Fesik, E.V., Buslaeva, T.M., Mel’nikova, T.I., and Tarasova, L.S., Solid-state thermal transformations in mixtures of platinum(II) tetraammine with ammonium chromate and ammonium dichromate, Inorg. Mater., 2017, vol. 53, no. 10, pp. 1033–1038. doi 10.1134/S0020168517100065CrossRefGoogle Scholar
  20. 20.
    Fesik, E.V., Buslaeva, T.M., Mel’nikova, T.I., and Tarasova, L.S., Solid-state reactions in mixtures of palladium(II) ammoniate with ammonium chromate and ammonium dichromate, XXI Mezhdunarodnaya Chernyaevskaya konferentsiya po khimii, analitike i tekhnologii platinovykh metallov (XXI Int. Chernyaev Conf. on the Chemistry, Analysis, and Technology of Platinum Group Metals), Yekaterinburg/Novosibirsk: Nikolaev Inst. of Inorganic Chemistry, Sib. Branch, Russ. Acad. Sci., 2016, p. 117.Google Scholar
  21. 21.
    Boultif, A. and Louer, D., Powder pattern indexing with the dichotomy method, J. Appl. Crystallogr., 2004, vol. 37, pp. 724–731.CrossRefGoogle Scholar
  22. 22.
    Neorganicheskie soedineniya khroma: Spravochnik (Inorganic Chromium Compounds: A Handbook), Ryabin, V.A., Ed., Leningrad: Khimiya, 1981.Google Scholar
  23. 23.
    Bokii, G.B., Kristallokhimiya (Crystal Chemistry), Moscow: Nauka, 1971.Google Scholar
  24. 24.
    Savitskii, E.M., Polyakova, V.P., Gorina, N.B., and Roshan, R.N., Metallovedenie platinovykh metallov (Physical Metallurgy of the Platinum Group Metals), Moscow: Metallurgiya, 1975, p. 268.Google Scholar
  25. 25.
    Wang, D., Flanagan, T.B., Balasubramaniam, R., and Shanahan, K., The near elimination of hysteresis in Pd/Cr2O3 composites, J. Alloys Compd., 2005, vols. 404–406, pp. 38–42.Google Scholar

Copyright information

© Pleiades Publishing, Inc. 2018

Authors and Affiliations

  • E. V. Fesik
    • 1
    • 2
    Email author
  • T. M. Buslaeva
    • 3
  • T. I. Mel’nikova
    • 4
  • L. S. Tarasova
    • 5
  1. 1.Samara National Research UniversitySamaraRussia
  2. 2.Reaviz Medical UniversitySamaraRussia
  3. 3.Lomonosov Institute of Fine Chemical Technologies, Moscow Institute of Radio Engineering, Electronics, and Automation (Russian Technological University)MoscowRussia
  4. 4.Chemical and Ecological Education Promotion Nonprofit PartnershipMoscowRussia
  5. 5.Krasnoyarsk Scientific Center Federal Research Center, Siberian Branch, Russian Academy of SciencesKrasnoyarskRussia

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