Preparation and Characterization of Cerium Hexaboride Nanometer Powders by Combustion Synthesis

Abstract:

High-purity and homogeneous powders of CeB₆ with nanometer size were prepared by combustion synthesis and subsequent acid- leaching. The effects of reactant ratio on the phase and morphology of the combustion product were discussed. The combustion product and leached product were analyzed by XRD, SEM and EDS. The results indicate that the combustion product consists of CeB₆, MgO and Mg₃B₂O₆. The combustion products are denser and less layered when the Mg content and KClO₃ content increase. The content of CeB₆ in the combustion product could be enhanced with increasing the excessive content of Mg. The purity of CeB₆ is higher than 99.0% and its particles are smaller than 150nm.

• Periodical: Advanced Materials Research (Volumes 236-238)
• Pages: 1670-1674
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.236-238.1670
• Online since: May 2011
• Authors: Zhi He Dou, Ting An Zhang, Ji Cheng He
• Keywords: Cerium Hexaboride, Combustion Synthesis, Nanometer Power

References

[1] Balakrishnan G, Lees M R, McK Paul D, et al. Journal of Crystal Growth, Vol 256(1/2) (2003),:p.206.

[2] Zou Chun Yun, Zhao Yan Ming, Xu Jun Qi, et al. Journal of Crystal Growth, Vol291(1)( 2006),p.112.

[3] Togawaa K, Babaa H, Onoea K, et al. Nuclear Instruments and Methods in Physics Research A, Vol 528(4)(2004), p.312.

[4] Otani S, Nakagawa H, Nishi Y, et al. Journal of Solid State Chemistry, Vol 154(1) (2009), p.238.

[5] ZHANG Ting-an, DOU Zhi-he. Journal of Northeastern University (Natural Science), Vol 25(1)(2004), p.271, In Chinese.

[6] Paderno V,.Paderno Y, Britun, V.Journal of Alloys and Compounds, Vol 219 (94)(1995), p.228

DOI: 10.1016/0925-8388(94)05051-1

[7] Masatoshi Takeda, Tadahiro Fukuda, Ferrer Domingo, et al. Journal of Solid State Chemistry, Vol 177(1)(2004), p.471.

[8] Kewu Peng, Heli Ma. Rare Metal, Vol 33(6)(2009), p.850.

[9] Zhang Maofeng, Yuan Liang, Wang Xiaoqing，et al. Journal of Solid State Chemistry, Vol 18(1)(2008), p.294.

[10] Gygax F N, Schenck A. Journal of Alloys and Compounds, Vol 404-406(11)(2005), p.360.

[11] Shenlin Zou, Jiuxing Zhang, Danmin Liu, etal. Journal of Inorganic materials. Vol 24(4)(2009), p.793.

[12] Zhihe Dou, Ting-an Zhang, Chuang Hou, et al. The Chinese journal of Nonferrous Metals, Vol 14(2)(2004), p.322. In Chinese.

[13] Yanling Wang, Ting-an Zhang, Huan. Yang et al. Journal of Advanced Materials, Vol 36(2)(2004), p.44.