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- Title
Synthesis of rare earth hydroxide nanorods by room temperature reaction of oxide precursors with water.
- Authors
Dodd, Aaron; Saunders, Martin
- Abstract
In this study, solid state chemical reaction of anhydrous chloride precursors with NaCO has been used to manufacture composite powders of nanocrystalline rare earth oxide grains embedded within a matrix of NaCl. Subsequent washing of these powders with deionised water resulted in removal of the NaCl matrix and hydration of the oxide nanoparticles. In the case of NdO and SmO, the hydration process yielded hydroxide nanorods. In contrast, washing of the GdO yielded a powder consisting of irregularly shaped nanoparticles of GdO and GdOOH. Analysis using high resolution transmission electron microscopy revealed that the NdO and SmO nanorods were not single crystals but were composed of crystalline subunits with a common $$ \left\langle {0001} \right\rangle $$ growth direction. The results obtained in this study demonstrate that rare earth hydroxide nanorods can be synthesised from oxide precursors without the need for hydrothermal processing at elevated temperature and pressure.
- Subjects
NANOSTRUCTURED materials; RARE earth metal compounds; TEMPERATURE; MECHANICAL alloying; SOLID state chemistry; NANOCRYSTALS; NANOCOMPOSITE materials; HYDRATION
- Publication
Journal of Nanoparticle Research, 2011, Vol 13, Issue 6, p2633
- ISSN
1388-0764
- Publication type
Article
- DOI
10.1007/s11051-010-0156-3