Abstract
A number of electrochemical experiments were employed to investigate the effects of hydrogen on the corrosion of UO 2 under nuclear waste disposal conditions. A combination of corrosion potential ( E CORR) measurements and cyclic voltammetry have indicated that dissolved hydrogen can polarize the UO 2 surface to reducing potentials; i.e., to E CORR values more negative then those observed under anoxic (argon-purged) conditions. A comparison of the behaviours of SIMFUEL specimens with and without incorporated noble metal ε-particles indicates that these particles may act as catalytic electrodes for H 2 oxidation, H 2 ↔ 2 e − + 2H +. It is the galvanic coupling of these particles to the UO 2 matrix which suppresses the fuel corrosion potential.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
