Article ID Journal Published Year Pages File Type
193205 Electrochimica Acta 2009 6 Pages PDF
Abstract

The electrochemical behavior of a platinum anode has been investigated during the electrolysis of uranium oxide in a LiCl molten salt. Pt is oxidized to Pt2+ at 2.6 V (vs. Li–Pb reference electrode) in the absence of O2− ion. The platinum dissolution takes place at a more anodic potential with an increase of O2− ion. Although the main anodic process in the electrolysis is the oxygen evolution by oxidation of O2− ion at a higher concentration of Li2O, a thin film due to the formation of Li2PtO3 was coated on the anode surface. The platinum dissolution proceeds with an intergranular corrosion-like behavior at a low concentration of Li2O.

Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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