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Topic Title: ARTICLE: Dissimilar Behavior of Technetium and Rhenium in Borosilicate Waste Glass
Topic Summary: W. Lukens, et. al., Berkeley National Lab. Behavior determined by X-ray absorption spectroscopy
Created On: 5/25/2007 12:06 PM

 5/25/2007 12:06 PM

Lynne Robinson

Posts: 701
Joined: 2/3/2007

To better understand the redox behavior of Tc and Re in nuclear waste glass, a series of glasses were prepared under different redox conditions. The speciation of Tc and Re in the resulting glasses was determined by X-ray absorption fine structure spectroscopy. Surprisingly,Re and Tc do not behave similarly in the glass melt. Although Tc(0),Tc(IV), and Tc(VII) were observed in these samples, only Re(0) andRe(VII) were found. In no case was Re(IV) (or Re(VI))observed.

Citation: Lukens, W.W., McKeown, D.A., Buechele, A.C., Muller, I.S., Shuh, D.K., Pegg, I.L. "Dissimilar behavior of technetium and rhenium in borosilicatewaste glass as determined by X-ray absorption spectroscopy." Chemistry of Materials 19(3) 2007.

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