| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Functional Nanomaterials 2024
|
| Presentation Title |
A-22: Facile Hydrothermal Synthesis of Cubic-shaped Cerium Oxide Nanoparticles Modulated by Acetate Molecules |
| Author(s) |
Yifei Fu, Craig Neal, Elayaraja Kolanthai, Sidra Munir, Khoa Minh Ta, Marco Molinari, Sudipta Seal |
| On-Site Speaker (Planned) |
Yifei Fu |
| Abstract Scope |
Cerium oxide nanoparticles (CeNPs) are recognized as functional materials with diverse applications. Conventional synthesis of CeNPs involves direct addition of precipitating agents to cerium solution. Rapid change of solution concentration and localized ligand introduction result in less control of particles size and dispersity. Here, we report a simple hydrothermal synthesis of cubic shape CeNPs through homogenous precipitation, achieved by introduction of acetate molecules. A distinct trend of CeNPs transitioning from octahedral to cubic was observed through series of experiments. Results from experimental and computational study have demonstrated that acetate plays an important role in directing the morphological transition of CeNPs and providing a buffered environment. The formation of Ce(IV)-acetate complexes not only stabilizes the Ce(IV) and inhibits hydrolysis until the desired pH is adjusted, but the stabilization of Ce(IV) ions is also favorably weakened during the hydrothermal treatment, leading to successful homogeneous precipitation and the formation of monodispersed cubic-shaped CeNPs. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Nanotechnology, Characterization |