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Post-doctoral (Florida State University, FL). Advisor: Prof. G.R. Choppin.
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Doctorate in Sciences (1993), Radioanalytical and Nuclear Chemistry.
University of Paris XI (Orsay, France). Advisors: Prof. R. Guillaumont and Dr. V. Moulin
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- “Diplôme d'Etudes Approfondies” (DEA) (1990), Radioanalytical and Nuclear Chemistry.
University of Paris XI (Orsay, France).
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- “Maîtrise de Sciences Physiques” (1989), Chemistry/Physics.
University of Paris XI (Orsay, France).
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- These degrees have been certified equivalent to a PhD in Radiochemistry, a MS in Radiochemistry, and a Bachelor in Physics and Chemistry
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Prior to joining Washington State University, I worked at the French Commissariat a l'Energie Atomique (Atomic Energy Agency), in the division for the study of nuclear waste repositories; at Florida State University, on a post-doctoral appointment; and at Sandia National Laboratories, studying the Waste Isolation Pilot Plant, the first deep geological repository for transuranic wastes.
Our research focuses on the environmental behavior of radio-contaminants, in particular the actinides. Our laboratory interests include:
- the study of the chemical behaviors of inorganic (minerals) and organic (e.g. humic and fulvic acids) colloids,
- their interaction with the actinides,
- the evolution of the post-closure chemical environment of a nuclear waste repository,
- the impact of the repository on the solubility and speciation of actinides.
Some of our current work include the interaction of actinides with uranyl minerals (boltwoodite, sklodowskite, and uranophane), minerals predicted to form in the vicinity of a nuclear waste repository, upon corrosion of the spent nuclear fuel.
We also study the chemistry of tetravalent technetium and uranium, and the influence of organic ligands on their solubility, in collaboration with Dr. Baohua Gu's research group (Oak Ridge National Laboratory), in a project funded by the US Department of Energy
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- Solubility and Speciation Modeling of Actinides in the Waste Isolation Pilot Plant. Donald E. Wall, Nathalie A. Wall, and Laurence H. Brush. In "Separations for the Nuclear Fuel Cycle in the 21st Century", 313-334. Ed. Lumetta et al. American Chemical Society, Washington, DC (2006).
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- Sustainability of humic acids in the presence of magnesium oxide. Nathalie A. Wall and Sara A. Mathews. Applied Geochemistry 20 (9) 1704-1713. (2005).
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- Humic acids coagulation: influence of divalent cations. Nathalie A. Wall and Gregory R. Choppin. Applied Geochemistry, 18, 1573-1582 (2003). (Also in: Experimental Earth Virtual Journal, 1(3) (2003)).
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- Complexation of americium with humic, fulvic and citric acids at high ionic strength. N.A. Wall, M. Borkowski, J-F. Chen, G.R. Choppin. Radiochimica Acta 90, 563-568 (2002).
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- Quality assurance application in nuclear repository research. Nathalie A. Wall, Laurence H. Brush and Jonathan G. Miller. GLOBAL 2001 – Proceedings – Paris - France, September 9/13, 2001 (2001).
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- Interaction of actinides with humic and fulvic acids at high ionic strengths. N. Labonne-Wall, G.R. Choppin, C. Lopez and J-M. Monsallier. In "Actinides Speciation in high ionic strength media", 199 - 211. Ed. Reed et al. Kluwer Academic / Plenum Publishers, New York (1999).
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- Comparison of two models for metal-humic interactions. G.R. Choppin and N. Labonne-Wall. Journal of Radioanalytical and Nuclear Chemistry 221 (1-2), 67-71 (1997).
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- Retention properties of humic substances onto a mineral oxide: consequences for the sorption of cations. N. Labonne-Wall, V. Moulin and J-P. Vilarem. Radiochimica Acta 79, 37-49 (1997).
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- Actinides sorption onto silica in the presence of humic substances: proposal of retention mechanisms. N. Labonne, V. Moulin and D. Stammose. Material Research Society Proceedings 257, 307-314 (1992).
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