Nuclear mattersRecipe for radioactive materials helps in studies of nuclear waste and fuel storage pools
Easy-to-follow recipes for radioactive compounds like those found in nuclear fuel storage pools, liquid waste containment areas, and other contaminated aqueous environments have been developed by researchers at Sandia National Laboratories; the trick to the recipes is choosing the right templates; these are atoms or molecules that direct the growth of compounds in much the way islands act as templates for coral reefs
Easy-to-follow recipes for radioactive compounds like those found in nuclear fuel storage pools, liquid waste containment areas, and other contaminated aqueous environments have been developed by researchers at Sandia National Laboratories.
“The need to understand the chemistry of these compounds has never been more urgent, and these recipes facilitate their study,” principal investigator May Nyman said of her group’s success in encouraging significant amounts of relevant compounds to self-assemble.
A Sandia National Lab release reports that the trick to the recipes is choosing the right templates. These are atoms or molecules that direct the growth of compounds in much the way islands act as templates for coral reefs.
The synthesized materials are stable, pure and can be studied in solution or as solids, making it easier to investigate their chemistry, transport properties and related phases.
Made with relatively inexpensive and safe depleted uranium, the recipes may be adapted to include other, more radioactive metals such as neptunium, whose effects are even more important to study, Nyman said.
Cesium — an element of particular concern in its radioactive form — proved to be, chemically, an especially favored template for the compounds to self-assemble.
The Sandia release notes that the work was done as part of the Actinide Materials Department of Energy (DOE) Energy Frontiers Research Center (EFRC) led by professor Peter Burns at Notre Dame University. Using the new method, researchers at the University of California-Davis are studying how materials behave in water and in different thermal environments, while researchers at DOE’s Savannah River Site study the analogous behavior of neptunium.
The research was featured as the cover article of the 3 May online European Journal of Inorganic Chemistry, and was previewed in the online ChemViews Magazine.
