Synthesis of Ce_0.8Nd_0.2O_1.9 Nanocrystalline Powders by Low Temperature Combustion Process

Abstract:

In this work, synthesis of the nanocrystalline Ce_0.8Nd_0.2O_1.9 Solid solution Powders by a nitrate-glycine gel-combustion process was investigated. The effects of glycine/metal ratio and calcination temperature on the powders phase structure, morphology and particle were investigated. TG-DSC curves and XRD peak of different glycine/metal ratio show that smaller particle size can be obtained with a slightly fuel-deficient ratio. XRD results indicate that the as-prepared powders are crystallinzed in a single fluorrite structure. The crystalline size ranges from 9 nm to 24 nm, which increases with the increase of calcination temperature. The SEM results imply some organic agent may be eliminated by high temperature calcination process.

• Periodical: Advanced Materials Research (Volumes 399-401)
• Pages: 860-863
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.399-401.860
• Online since: November 2011
• Authors: Yang Feng Huang, Ye Bin Cai, Hao Liu
• Keywords: Ce_0.8Nd_0.2O_1.9 Nanosized Powders, Combusion Synthesis, Glycine/Metal Ratio

References

[1] C. J. Zhu, X. M. Liu, D. T. Yan, Electrochemistry Communications, 11:958-961 (2009).

[2] C. J. Zhu, X. M. Liu, C. S. Yi, Journal of Power Sources, 195:3504-3507 (2010).

[3] T. S. Zhang, J. Ma, Journal of Crystal Growth, 274:603-611 (2005).

[4] D. P. Fagg, S. Garcla-Martin, V. V. Kharton, Chemical Materials, 21:381-391 (2009).

[5] T. Mori, J. Drennan, J. H. Lee, Solid State Ionics, 154-155:461-466 (2002).

[6] R. Tian, J. Fan, Y. Liu, Journal of Power Sources, 185(2):1247~1251 (2008).

[7] Y. Masubuchi, M.Higuchi, H.Katase, Solid State Ionics, 166(1~2): 213~217 (2004).

[8] C. J. Kevane, E. L. Holverson, R. D. Watson, Journal of Applied Physics,34(7): 2083~2087(2010)

[9] R. D. Purohit, A. K. Tyagi, Journal of Materials Chemical, 12:312-316 (2002)..