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Synthesis of Nanocrystalline Ce0.8Sm0.2O1.9 by Citrate Gel Method

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Abstract:

A citrate gel method was applied to synthesize Ce0.8Sm0.2O1.9 powders by using cerium and samarium nitrates as raw materials and citric acid as complexing agent. It was shown that Ce0.8Sm0.2O1.9 phase was formed when the decomposition of the dried gel completed at 500 °C. The crystallite size of the synthesized powders calcined at 500 °C for 2 h is 5-10 nm. The powders can be easily sintered in air to yield over 97 % relative density at 1250 °C, which is significantly lower than sintering temperature of over 1500°C required by the doped ceria powders prepared via conventional ceramic techniques.

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Periodical:

Key Engineering Materials (Volumes 368-372)

Pages:

247-249

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.368-372.247

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Online since:

February 2008

Authors:

Xiang Feng Guan, Yan An Wang, He Ping Zhou, Li Hua Zhou

Keywords:

Citrate Gel, Doped Ceria Ceramic, Electron Microscopy

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] B.C.H. Steele: Solid State Ion. Vol. 129 (2000), p.95.

Google Scholar

[2] G.B. Jung, T.J. Huang and C.L. Chang: J. Solid State Electrochem. Vol. 6 (2002), p.225.

Google Scholar

[3] K.Q. Huang, M. Feng and J.B. Goodenough: J. Am. Ceram. Soc. Vol. 81 (1998), p.357.

Google Scholar

[4] S.K. Tadokoro and E.N.S. Muccillo: J. Power Sources Vol. 154 (2006), p.1.

Google Scholar

[5] G.B. Jung, T.J. Huang, M.H. Huang and C.L. Chang: J. Mater. Sci. Vol. 36 (2001), p.5839.

Google Scholar

[6] Y.A. An, L. Li, J. Wang and M.Q. Shen: J. Rare Earths Vol. 23 (2005), P. 416.

Google Scholar

[7] S. Dikmen, P. Shuk, M. Greenblatt and H. Gocmez: Solid State Sci. Vol. 4 (2002), p.585.

Google Scholar

[8] S. Mathur and H. Shen: J. Sol-Gel Sci. Technol. Vol. 25 (2002), p.147.

Google Scholar

[9] R. Pasricha and V. Ravi: Mater. Lett. Vol. 59 (2005), p.2146.

Google Scholar

[10] C.C. Wang and J.Y. Ying: Chem. Mat. Vol. 11 (1999), p.3113.

Google Scholar

[11] S.P. Gaikwad, V. Samuel, R. Pasricha and V. Ravi: Mater. Lett. Vol. 58 (2004), p.3728.

Google Scholar

[12] J.F. Porter, Y.G. Li and C.K. Chan: J. Mater. Sci. Vol. 34 (1999).

Google Scholar