Abstract
Potassium nickel fluoride (KNiF3) hollow spheres with diameters of 200-400 nm have been solvothermally synthesized at 110°C using KF and NiCl2 as reactants in ethanol, without additional template materials or surfactants. The results of XRD and XPS indicate that the products are perovskite-type KNiF3. TEM microphotos show that the hollow spheres are composed of KNiF3 nanoparticles with an average size of l0nm, and the wall thickness is 20-40 nm. UV-vis and PL spectra have recorded the optical properties of KNiF3 hollow spheres. A possible mechanism for the formation of KNiF3 hollow spheres is also discussed.
Original language | English (US) |
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Pages (from-to) | 373-378 |
Number of pages | 6 |
Journal | Materials Chemistry and Physics |
Volume | 89 |
Issue number | 2-3 |
DOIs | |
State | Published - Feb 15 2005 |
Bibliographical note
Funding Information:This work was supported by the National Natural Science Foundation of China and the 973 Projects of China.
Keywords
- Chemical synthesis
- Electron microscopy
- Nanostructures
- Optical properties