Abstract
Electroreduction of Tc(VII) was studied in nitric acid solution using glassy carbon electrode. The electroreduction was conducted at a constant potential −300 mV (vs. Ag/AgCl) with a potentiostat. It was found that the difference of the Tc concentration in the solutions before and after the electrolysis was negligibly small. This means that there were almost no TcO2 or Tc deposited on the carbon fiber electrode during the electroreduction. Absorption spectra and distribution coefficients obtained by ion-exchange analysis indicated that Tc(VII) was reduced to Tc(IV).
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References
Y.-Z. Wei, T. Arai, M. Kumagai, A. Bruggeman, Development of the ERIX Process for Reprocessing Spent FBR-MOX Fuel, in: Proc. Global 2003, New Orleans, Louisiana, USA, 2003.
K. R. Ashley, J. R. Ball, A. B. Pinkerton, K. D. Abney, N. C. Schroeder, Solv. Extr. Ion Exch., 12 (1994) 239.
Y.-Z. Wei, T. Arai, H. Hoshi, M. Kumagai, A. Bruggeman, M. Gysemans, T. Sawa, JAERI-CONF-2002-004, 2002, p. 225.
N. C. Schroeder, S. D. Radzinski, J. R. Ball, K. R. Ashley, G. D. Whitener, ACS Symp. Ser., 716 (1999) 219.
T. Arai, Y.-Z. Wei, M. Kumagai, Y. Takashima, An Advanced Ion Exchange Process for Reprocessing Spent Nuclear Fuels — Electrolytic Reduction of U(VI) to U(IV) and Separation Behavior of U(IV) from FPs, in: Proc. Global 2001, Paris, France, 2001.
T. Asakura, G. Uchiyama, H. Hoshi, Y.-Z. Wei, M. Kumagai, J. Nucl. Sci. Technol., Suppl. 3 (2002) 340.
Y.-Z. Wei, M. Kumagai, Y. Takashima, M. Asou, T. Namba, K. Suzuki, A. Maekawa, S. Ohe, J. Nucl. Sci. Technol., 35 (1998) 357.
Y.-Z. Wei, T. Arai, M. Kumagai, Y. Takashima, H. Yokoi, F. Kawamura, A. Bruggeman, M. Gyseman, Development of an Advanced Ion Exchange Process for Reprocessing Spent Nuclear Fuels, in: Proc. Global ‘99, Jackson Hole, Wyoming, USA, 1999.
G. H. Cartledge, W. T. Smith Jr., J. Phys. Chem., 59 (1955) 1111.
J. A. Rard, UCRL-53440, 1983
A. J. Bard, R. Parsons, J. Jordan (Eds), Standard Potentials in Aqueous Solution, Marcel Dekker, New York, 1985.
J. J. Katz, G. T. Seaborg, L. R. Morss (Eds), The Chemistry of the Actinide Elements, Chapman and Hall, London/New York, 1986, 1142.
C. E. Crouthamel, Anal. Chem., 29 (1957) 1756.
H. S. Trop, A. Davison, A. G. Jones, M. A. Davis, D. J. Szalda, S. J. Lippard, Inorg. Chem., 19 (1980) 1105.
J. A. Rard, Chemical Thermodynamics of Technetium, Chapter III, 1999.
F. P. Roberts, F. M. Smith, E. J. Wheelwright, HW-SA-2581, Richland, Washington, 1962.
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This work was financed by the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT) under the framework of The Development of Innovative Nuclear Technologies.
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Hoshi, H., Wei, Y.Z., Kumagai, M. et al. Electrolytic reduction of Tc(VII) in nitric acid solution using glassy carbon electrode. J Radioanal Nucl Chem 262, 601–605 (2005). https://doi.org/10.1007/s10967-005-0482-6
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DOI: https://doi.org/10.1007/s10967-005-0482-6