| Author(s): |
Renu Sharma; |
| Title: |
A spray drying system for synthesis of rare-earth doped cerium oxide nanoparticles |
| Published: |
August 10, 2010 |
| Abstract: |
We have constructed a spray-dryer to synthesize doped ceria nanoparticles. This system was employed to synthesize mixed oxide nanoparticles of praseodymium doped (3%, 10% and 20mol %) ceria. X-ray Diffraction (XRD) confirmed the fluorite-like cubic crystal structure of the synthesized materials after calcination. As-dried CeO2 samples were found to have an average particle size of 6nm which after calcination at 700 C for 2hrs increased to 17nm with an improvement in crystallinity. The particle size increased for 3% and 10% Pr doped samples but nearly doubled for the 20% case. The lattice parameter of ceria was found to obey Vegard s law. |
| Citation: |
Chemical Physics Letters |
| Volume: |
495 |
| Issue: |
4-6 |
| Pages: |
pp. 280 - 286 |
| Keywords: |
Spray drying, CeO2, Pr-doped CeO2, XRD, TEM, EELS, Vegard s law |
| Research Areas: |
Nanomaterials |
| PDF version: |
 Click here to retrieve PDF version of paper (883KB) |
