Direct synthesis of pure brannerite UTi2O6
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | Direct synthesis of pure brannerite UTi2O6 |
| Type de publication | Journal Article |
| Year of Publication | 2019 |
| Auteurs | Mesbah A, Szenknect S, Clavier N, Lin H, Baron F, Beaufort D, Batonneau Y, Mercadier J, Eglinger A, Turuani M, Goncalves P, Choulet F, Chapon V, Seydoux-Guillaume A-M, Pagel M, Dacheux N |
| Journal | JOURNAL OF NUCLEAR MATERIALS |
| Volume | 515 |
| Pagination | 401-406 |
| Date Published | MAR |
| Type of Article | Article |
| ISSN | 0022-3115 |
| Mots-clés | Brannerite, Uranium hydroxide, Uranium titanate |
| Résumé | {A new method based on the precipitation of uranium(IV) and titanium(IV) hydroxide precursors was developed to prepare pure brannerite UTi2O6 samples. In fact, U(IV) dissolved in HCl (6 mol L-1) was mixed to Ti (IV) alkoxyde before a basification step with an excess of NH4OH to obtain a highly reactive nanometric (U,Ti)(OH)(4) powder. The obtained powder was then dried under vacuum, pressed into pellets and finally fired at 1300 degrees C. This method led to the formation of pure brannerite in contrast to previous reported protocols, which showed the formation of impurities such us UO2 and TiO2. The refined unit cell parameters of UTi2O6 led to a = 9.8113(2) angstrom |
| DOI | 10.1016/j.jnucmat.2019.01.003 |