Hydrothermal method of synthesis of rare-earth tantalates and niobates
| DWPI Title: Forming rare-earth group 5 oxide, comprises preparing aqueous solution of complexed rare-earth ion, adding group 5 oxide ion to the solution and reacting complexed rare-earth ion and group 5 oxide ion under hydrothermal reaction conditions |
| Abstract: A hydrothermal method of synthesis of a family of rare-earth Group 5 oxides, where the Group 5 oxide is a niobate or tantalate. The rare-earth Group 5 oxides can be doped with suitable emitter ions to form nanophosphors. |
| Use: The method is useful for forming a rare-earth group 5 oxide (claimed) which is useful to form nanoparticles. |
| Advantage: The method can be carried out at lower temperatures which provide substantially higher quantum yield with or without a controlled atmosphere. |
| Novelty: Forming a rare-earth group 5 oxide, comprises: preparing an aqueous solution of a complexed rare-earth ion, where a pH of the aqueous solution is suitable for retaining the complexed rare-earth ion in solution; adding a group 5 oxide ion to the aqueous solution to form a reaction solution; and reacting the complexed rare-earth ion and the group 5 oxide ion under hydrothermal reaction conditions to form a rare-earth group 5 oxide, which is a tantalate or a niobate. |
| Filed: 9/15/2010 |
| Application Number: US2010882369A |
| Tech ID: SD 11392.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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