In situ Monitoring of Synchrotron X-Ray-Induced Radiolysis Effects on Chromium Species Using X-Ray Absorption Spectroscopy
Synchrotron X-ray radiolysis-induced redox in a chromium aqueous solution was monitored using in situ X-ray absorption spectroscopy. The radiolysis in the fluid sample within a specifically designed hydrothermal diamond anvil cell caused the oxidation of Cr(III) to Cr(VI) upon heating from room temperature to 400°C, and reduction of Cr(VI) to Cr(III) at 500°C. The two fitted components of the pre-edge features of the Cr K-edge spectra were used to identify the presence of Cr(VI) in the solution.
Physics, Astronomy, and Materials Science
chromium, radiolysis, redox, supercritical fluid, X-ray absorption spectroscopy
Men, S., A. J. Anderson, and R. A. Mayanovic. "In situ Monitoring of Synchrotron X-Ray-Induced Radiolysis Effects on Chromium Species Using X-Ray Absorption Spectroscopy." Journal of Applied Spectroscopy 84, no. 2 (2017): 342-345.
Journal of Applied Spectroscopy