Open AccessAn X-ray photoelectron spectroscopy study of the products of the interaction of gaseous IrF6 with fine UO2F2
Author(s) -
V.N. Prusakov,
Yury A. Teterin,
N. M. Trotsenko,
K. I. Maslakov,
A. Yu. Teterin,
К. Е. Иванов,
Filipp S. Bochagin,
D. V. Utrobin
Publication year - 2007
Publication title -
nuclear technology and radiation protection
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 16
eISSN - 1452-8185
pISSN - 1451-3994
DOI - 10.2298/ntrp0701003p
Subject(s) - iridium , sorption , plutonium , x ray photoelectron spectroscopy , penetration (warfare) , materials science , chemistry , radiochemistry , catalysis , adsorption , chemical engineering , organic chemistry , engineering , operations research
Nuclear fuel reprocessing by fluorination, a dry method of regeneration of spent nuclear fuel, uses UO2F2 for the separation of plutonium from gaseous mixtures. Since plutonium requires special treatment, IrF6 was used as a thermodynamic model of PuF6. The model reaction of the interaction of gaseous IrF6 with fine UO2F2 in the sorption column revealed a change of color of the sorption column contents from pale-yellow to gray and black, indicating the formation of products of such an interaction. The X-ray photoelectron spectroscopy study showed that the interaction of gaseous IrF6 with fine UO2F2 at 125 °C results in the formation of stable iridium compounds where the iridium oxidation state is close to Ir3+. The dependence of the elemental compositions of the layers in the sorption column on the penetration depth of IrF6 was established