Advertisement

Radiochemistry

, Volume 56, Issue 2, pp 150–155 | Cite as

Catalytic reduction of U(VI) in H2SO4 solutions with hydrazine and formic acid in the presence of bimetallic platinum-ruthenium catalysts

  • M. S. TyumentsevEmail author
  • Ya. V. Zubavichus
  • A. A. Shiryaev
  • A. V. Anan’ev
Article

Abstract

The structure of bimetallic platinum-ruthenium catalysts was studied by X-ray phase analysis and X-ray absorption spectroscopy. The effects of strong electronic interaction of Pt and Ru atoms in formation of the binary catalyst were revealed. The kinetics of catalytic reduction of U(VI) with hydrazine and formic acid in sulfuric acid solutions on 5% (Pt-Ru)/SiO2 was studied. The mechanisms of these reactions with platinum and bimetallic platinum-ruthenium catalysts are similar. A catalytic synergistic effect is observed in heterogeneouscatalytic reactions of U(VI) reduction with hydrazine and formic acid in H2SO4 solutions.

Keywords

uranium(VI) reduction hydrazine formic acid platinum-ruthenium catalysts 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Abdunnabi, H.M., Ananyev, A.V., and Krot, N.N., J. Radioanal. Nucl. Chem. Lett., 1994, vol. 186, no. 1, pp. 89–97.CrossRefGoogle Scholar
  2. 2.
    Abdunnabi, H.M., Catalytic Reduction of Uranium(VI) in Different Media and Preparation of Some Nuclear Fuel Compositions, PhD Thesis, Moscow: Inst. of Physical Chemistry, Russian Acad. Sci., 1994.Google Scholar
  3. 3.
    Boltoeva, M.Yu., Trefilova, A.V., and Anan’ev, A.V., Radiochemistry, 2008, vol. 50, no. 1, pp. 38–45.CrossRefGoogle Scholar
  4. 4.
    Boltoeva, M.Yu., Shilov, V.P., and Anan’ev, A.V., Radiochemistry, 2008, vol. 50, no. 1, pp. 46–51.CrossRefGoogle Scholar
  5. 5.
    Anan’ev, A.V., Boltoeva, M.Yu., Tyumentsev, M.S., et al., Radiochemistry, 2013, vol. 55, no. 1, pp. 52–58.CrossRefGoogle Scholar
  6. 6.
    Toshima, N. and Yonezawa, T., New J. Chem., 1998, pp. 1179–1201.Google Scholar
  7. 7.
    Nilekar, A.U., Alayoglu, S., Eichhorn, B., et al., J. Am. Chem. Soc., 2010, vol. 132, pp. 7418–7428.CrossRefGoogle Scholar
  8. 8.
    Alayoglu, S., Zavalij, P., Eichhorn, B., et al., ACS NANO, 2009, vol. 3, no. 10, pp. 3127–3137.CrossRefGoogle Scholar
  9. 9.
    Alayoglu, S., Nilekar, A.U., Mavrikakis, M., et al., Nat. Mater., 2008, vol. 7, pp. 333–338.CrossRefGoogle Scholar
  10. 10.
    Chernyshov, A.A., Veligzhanin, A.A., and Zubavichus, Y.V., Nucl. Instrum. Meth. Phys. Res. A, 2009, vol. 603, pp. 95–98.CrossRefGoogle Scholar
  11. 11.
    Ravel, B. and Newville, M., J. Synchrotron Radiat., 2005, vol. 12, pp. 537–541.CrossRefGoogle Scholar
  12. 12.
    Anan’ev, A.V. and Shilov, V.P., Radiochemistry, 2004, vol. 46, no. 4, pp. 377–384.CrossRefGoogle Scholar
  13. 13.
    Loveland, W.D., Morrissey, D.J., and Seaborg, G.T., Modern Nuclear Chemistry, Hoboken, New Jersey: Wiley, 2006, p. 473.Google Scholar
  14. 14.
    Boltoeva, M.Yu., Shilov, V.P., and Anan’ev, A.V., Radiochemistry, 2008, vol. 50, no. 2, pp. 130–135.CrossRefGoogle Scholar
  15. 15.
    Boltoeva, M.Yu., Shilov, V.P., and Anan’ev, A.V., Radiochemistry, 2007, vol. 49, no. 6, pp. 603–606.CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Inc. 2014

Authors and Affiliations

  • M. S. Tyumentsev
    • 1
    Email author
  • Ya. V. Zubavichus
    • 2
  • A. A. Shiryaev
    • 1
  • A. V. Anan’ev
    • 1
  1. 1.Frumkin Institute of Physical Chemistry and ElectrochemistryRussian Academy of SciencesMoscowRussia
  2. 2.National Research Center Kurchatov InstituteMoscowRussia

Personalised recommendations