| Abstract Scope |
A modular spectroelectrochemical cell (SEC) has been designed and fabricated for the elemental and speciation characterization of molten salts. The performance of stand-alone and combined electro- and spectro- analytical techniques of the SEC (e.g., alternating cyclic voltammetry and laser induced fluorescence spectroscopy, simultaneous chronopotentiometry and absorption spectroscopy) will be compared against the literature. This work will be based on alkali-alkali/alkali-alkaline chloride based eutectic salt systems with several analytes (e.g. U, Mg, Ce, Nd, Cs, Fe) in their chloride forms to simulate molten salt compositions often found in pyroprocessing and molten salt reactors to simulate fissionable material (including surrogate materials), neutron poisons, fission products, and corrosion products. Non-traditional spectroelectrochemistry techniques (e.g. normal pulse voltammetry with time resolved laser induced fluorescence spectroscopy) will be explored with the SEC. Unique and novel apparati associated with the SEC, along with lessons learned, will be discussed. |