Reduction Characteristics of Certain Oxides of Nickel and Uranium

  • P. S. Clough
  • D. Dollimore


The reduction of a uranium oxide (U3O8) and nickelous oxide (NiO) by hydrogen atmospheres has been studied using a Cahn RG electrobalance. The oxide samples were prepared by the thermal decomposition of selected nickel and urariyl salts. Heating of the product oxides caused sintering observable as a decrease in surface area. The effect of this sintering on the rates of reduction of the oxides has been investigated in a series of isothermal experiments. The kinetics of the reduction process are investigated and possible reaction mechanisms are suggested.


Induction Period Reduction Process Excess Weight Loss Nickel Oxide Reduction Characteristic 
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  1. 1.
    Cotton and Wilkinson, Advanced Inorganic Chemistry, Interscience, New York (1962), p. 910Google Scholar
  2. 2.
    J. A. Arfredson, Kgl. Svensk. Vetaskaps. Akad. Handl., p. 413Google Scholar
  3. 3.
    Harrington and Ruehle, Uranium Production Technology, Van Nostrand (1959)Google Scholar
  4. 4.
    R. M. Dell and V. J. Wheeler, Trans. Faraday Soc., 58, 1590 (1962)CrossRefGoogle Scholar
  5. 5.
    R. E. DeMarco and M. G. Mendel, J. Phys. Chem., 64, 132 (1960)CrossRefGoogle Scholar
  6. 6.
    K. J. Notz and M. G. Mendel, J. Inorg. Nucl. Chem., 14, 55 (1960)CrossRefGoogle Scholar
  7. 7.
    J. W. Mellor, Comprehensive Treatise on Inorganic Chemistry, Vol. XV, Longmans, London (1946)Google Scholar
  8. 8.
    G. Gallo, Ann. Chico. Applic., 17, 535 (1927)Google Scholar
  9. 9.
    G. Parravano, J. Am. Chem. Soc., 74, 1194 (1952)CrossRefGoogle Scholar
  10. 10.
    Y. Iida and K. Shimada, Bull. Chem. Soc. Japan, 33, 790 (1960)CrossRefGoogle Scholar
  11. 11.
    B. Delmon, Bull. Soc. Chico. France, 1961, 590–597Google Scholar
  12. 12.
    V. A. Telipko and V. M. Vlasenko, Kataliz i Katalizatory Akad. Nauk UkrSSR Resp. Mezhred Sb., (1965), pp. 146–154Google Scholar
  13. 13.
    P. S.. Clough, D. Dollimore, and P. Crundy, J. Inorg. Nucl. Chem., 31, 361 (1969)CrossRefGoogle Scholar
  14. 14.
    J. Leicester and M. J. Redman, J. Appl. Chem., 12, 357 (1962)CrossRefGoogle Scholar
  15. 15.
    B. T. M. Willis, Nature, 197, 755 (1963)CrossRefGoogle Scholar
  16. 16.
    J. D. Cotton and P. J. Fensham, Trans. Faraday Soc., 59, 1444 (1963)CrossRefGoogle Scholar
  17. 17.
    J. S. Anderson and D. F. Klemperer, Proc. Roy. Soc., A258 350 (1960)Google Scholar

Copyright information

© Plenum Press, New York 1970

Authors and Affiliations

  • P. S. Clough
    • 1
  • D. Dollimore
    • 1
  1. 1.The Chemistry DepartmentThe University of SalfordSalford, Lancs.England

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