| Autor: |
MENG Zhao-kai, LIN Ru-shan, WANG You-qun, CHEN Hui, SONG Peng, HE Hui, YE Guo-an |
| Jazyk: |
čínština |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
He huaxue yu fangshe huaxue, Vol 45, Iss 2, Pp 133-138 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
0253-9950 |
| DOI: |
10.7538/hhx.2023.45.02.0133 |
| Popis: |
The electrolytic separation of actinides(An) from fission products(FPs) on solid Al cathode is one of the most promising pyrochemical reprocessing processes. In this work, the electrochemical behaviour of Pu3+ on active Al solid cathode was studied through the transient electrochemical method. Based on the results of cyclic voltammetry(CV) and square wave voltammetry(SWV), Pu3+ can be reduced into alloy through a onestep threeelectrons transfer process on Al cathode, and the reaction is irreversible. The relationship between the reduction potential of the alloy formed by Pu3+ with Al and temperature is EΘ,*(Pu3+/PuAln)(vs. Cl-/Cl2)=-2.944+9.84×10-4T. Five Pu alloys(involving Pu3Al, PuAl, PuAl2, PuAl3, and PuAl4) are formed according to the results of open circuit chronopotentiometry(OCP) together with phase diagrams of Pu-Al. Furthermore, the formation Gibbs free energies of PuAl4 at different temperature are calculated. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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