Many different applications of polyoxometalate technology are possible. One of these possibilities may be the disposal of nuclear waste, involving reacting a radioactive species with the phosphotungstate anion (PTA) which is deposited on an alumina surface. Investigating single crystal surfaces allows surface science techniques to be used in order to understand this system. Imaging and spectroscopic studies of PTA on single crystal alumina were performed using atomic force microscopy, x-ray photoelectron spectroscopy, and Raman spectroscopy. These studies contribute to the understanding of the interaction between PTA and alumina, which is valuable in understanding further applications of polyoxometalates.
Kristina Pontarelli, ’09 Iowa City, IA
Majors: Biochemistry and Molecular Biology, Spanish
Craig M. Teague, Ph.D.
Sponsor: Craig Teague