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Shirai, Osamu; Uozumi, Koichi*; Iwai, Takashi; Arai, Yasuo
Journal of Applied Electrochemistry, 34(3), p.323 - 330, 2004/03
Times Cited Count:29 Percentile:53.05(Electrochemistry)The electrode reactions of the Np/Np couple at liquid Cd and Bi electrodes were investigated by cyclic voltammetry at 723, 773 and 823 K in LiCl-KCl eutectic melt. It was found that the diffusion of Np
in the salt phase was a rate-determining step in the cathodic reaction when the concentration of NpCl
was less than about 1 wt.% and the liquid Cd or Bi phase was not saturated with Np. The redox potentials of the Np
/Np couple at liquid Cd electrode at 723, 773 and 823 K were observed more positively than those at Mo electrode by 0.158, 0.140 and 0.126 V, respectively. The potential shift would result from a lowering of activity of Np in Cd phase according to the alloy formation of NpCd
at 723 K and NpCd
at 773 and 823 K. The redox potentials of the Np
/Np couple at liquid Bi electrode at 723, 773 and 823 K were more positive than those at Mo electrode by 0.427, 0.419 and 0.410 V, respectively, which would be attributable to a lowering of activity of Np in Bi phase according to the formation of NpBi
.
Nagase, Fumihisa; Otomo, Takashi; Uetsuka, Hiroshi
JAERI-Research 2001-009, 21 Pages, 2001/03
no abstracts in English
Nagase, Fumihisa; Uetsuka, Hiroshi;
Journal of Nuclear Materials, 245(1), p.52 - 59, 1997/00
Times Cited Count:52 Percentile:94.72(Materials Science, Multidisciplinary)no abstracts in English
Nagase, Fumihisa; Uetsuka, Hiroshi;
JAERI-Research 95-085, 48 Pages, 1995/11
no abstracts in English