Systematic XAS study on the reduction and uptake of Tc by magnetite and mackinawite
Author:
Affiliation:
1. Institute for Nuclear Waste Disposal
2. Karlsruhe Institute of Technology
3. Germany
4. Institute of Resource Ecology
5. Helmholtz-Zentrum Dresden – Rossendorf
6. The Rossendorf Beamline at ESRF
7. Grenoble
Abstract
The mechanisms for the reduction and uptake of Tc by magnetite (Fe3O4) and mackinawite (FeS) are investigated using X-ray absorption spectroscopy (XANES and EXAFS), in combination with thermodynamic calculations of the Tc/Fe systems and accurate characterization of the solution properties (pHm, pe, [Tc]).
Publisher
Royal Society of Chemistry (RSC)
Subject
Inorganic Chemistry
Link
http://pubs.rsc.org/en/content/articlepdf/2016/DT/C6DT02872A
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3. Chemical thermodynamics of technetium, ed. J. A. Rard, M. H. Rand, G. Anderegg and H. Wanner, Elsevier, North-Holland, Amsterdam, 1999
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