On Mo-Ru-Tc-Pd-Rh-Te alloy particles extracted from spent fuel and their leaching behavior under Ar and H2 atmospheres
| LEADER | caa a22 4500 | ||
|---|---|---|---|
| 001 | 378927272 | ||
| 003 | CHVBK | ||
| 005 | 20180305123620.0 | ||
| 007 | cr unu---uuuuu | ||
| 008 | 161128e20041101xx s 000 0 eng | ||
| 024 | 7 | 0 | |a 10.1524/ract.92.9.551.55001 |2 doi |
| 035 | |a (NATIONALLICENCE)gruyter-10.1524/ract.92.9.551.55001 | ||
| 245 | 0 | 0 | |a On Mo-Ru-Tc-Pd-Rh-Te alloy particles extracted from spent fuel and their leaching behavior under Ar and H2 atmospheres |h [Elektronische Daten] |c [Daqing Cui, Jeanett Low, Cecilia J. Sjöstedt, Kastriot Spahiu] |
| 520 | 3 | |a In the present work, we extracted Mo-Tc-Ru-Pd-Rh-Te alloy particles from spent fuel by a non-oxidative selective leaching of the fuel matrix, characterized them and studied their leaching behavior under different redox conditions. After selecting the optimal experimental conditions by using a synthetic alloy, the radioactive alloy particles were extracted from spent fuel and characterized by using SEM (scanning electron microscopy)-WDS (wavelength dispersive spectra). Micrometer sized alloy particles display very similar compositions, on average (wt.%): 32.7% Mo, 40.5% Ru, 7% Tc, 4.4% Rh, 12.2% Pd and 3.8% Te. The alloy particles were leached in 10mM NaCl and 2mM NaHCO3 solutions, purged with two kinds of gas mixtures. It was observed that, under purging with Ar + 0.03% CO2, the leaching rates of 99Tc and 100Mo were similar, about 1.5ppb/day. The results obtained under purging with 89.97% Ar + 0.03% CO2 + 10% H2 indicate that the 4d alloy particles are very effective catalysts for reduction caused by hydrogen: the concentrations of 99Tc and 100Mo dropped to levels below 1ppb. No significant leaching of Ru, Rh, Pd and Te was observed during purging with both gas mixtures. | |
| 540 | |a © 2004 Oldenbourg Wissenschaftsverlag GmbH | ||
| 690 | 7 | |a Laboratory techniques, experiments |2 nationallicence | |
| 690 | 7 | |a Analytical chemistry |2 nationallicence | |
| 690 | 7 | |a Inorganic chemistry |2 nationallicence | |
| 700 | 1 | |a Cui |D Daqing |4 aut | |
| 700 | 1 | |a Low |D Jeanett |4 aut | |
| 700 | 1 | |a Sjöstedt |D Cecilia J. |4 aut | |
| 700 | 1 | |a Spahiu |D Kastriot |4 aut | |
| 773 | 0 | |t Radiochimica Acta/International journal for chemical aspects of nuclear science and technology |d Oldenbourg Wissenschaftsverlag GmbH |g 92/9-11/2004(2004-11-01), 551-555 |x 0033-8230 |q 92:9-11/2004<551 |1 2004 |2 92 |o ract | |
| 856 | 4 | 0 | |u https://doi.org/10.1524/ract.92.9.551.55001 |q text/html |z Onlinezugriff via DOI |
| 908 | |D 1 |a research article |2 jats | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1524/ract.92.9.551.55001 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Cui |D Daqing |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Low |D Jeanett |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Sjöstedt |D Cecilia J. |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Spahiu |D Kastriot |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Radiochimica Acta/International journal for chemical aspects of nuclear science and technology |d Oldenbourg Wissenschaftsverlag GmbH |g 92/9-11/2004(2004-11-01), 551-555 |x 0033-8230 |q 92:9-11/2004<551 |1 2004 |2 92 |o ract | ||
| 900 | 7 | |b CC0 |u http://creativecommons.org/publicdomain/zero/1.0 |2 nationallicence | |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-gruyter | ||