Bellakki, Manjunath B. and Shivakumara, C and Baidya, Tinku and Prakash, A. S. and Vasanthacharya, N. Y. and Hegde, M. S. (2008) Synthesis, structure and oxygen-storage capacity of Pr1−xZrxO2−δ and Pr1−x−yPdyZrxO2−δ. Materials Research Bulletin, 43 (10). pp. 2658-2667.
Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.
Official URL: http://www.sciencedirect.com/science?_ob=ArticleUR...
Abstract
Nanocrystalline Pr1−xZrxO2−δ (0 ≤ x ≤ 1) and Pr1−x−yPdyZrxO2−δ (x = 0.50, y = 0.02) solid solutions have been synthesized by a single step solution combustion method. The whole range of solid solution compositions crystallize in cubic fluorite structure. The lattice parameter ‘a’ linearly varied up to x = 1.0. Oxygen-storage capacity (OSC) and redox properties of Pr1−xZrxO2−δ (0.0 ≤ x ≤ 0.8) solid solutions have been investigated by temperature-programmed reduction (TPR) and are compared with those of Ce1−xZrxO2. Pr1−xZrxO2−δ exhibited H2 uptake and CO oxidation at a lower temperature than Ce1−xZrxO2. Small amount of Pd ion (y = 0.02) substitution was found to bring down the temperature of oxygen release–storage significantly.
| Item Type: | Article |
|---|---|
| Subjects: | Material Science > Functional and hybrid materials Physical Science > Nanophysics Physical Science > Nano objects Analytical Science > Nanotechnology for sensing and actuating Material Science > Nanostructured materials Material Science > Nanochemistry Physical Science > Photonics |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Physics Faculty of Engineering, Science and Mathematics > School of Chemistry |
| ID Code: | 3927 |
| Deposited By: | JNCASR |
| Deposited On: | 27 Jan 2009 04:04 |
| Last Modified: | 31 Mar 2009 16:02 |
Repository Staff Only: item control page
