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Synthesis of Na-β″/β-Al2O3 nanorods in an ionic liquid

Published online by Cambridge University Press:  22 July 2013

Hao Zhang ,
Gaoxiao Zhang ,
Xiangwei Wu ,
Zhaoyin Wen  and
Jingchao Zhang
Hao Zhang
Affiliation:
CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China
Gaoxiao Zhang
Affiliation:
CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China
Xiangwei Wu
Affiliation:
CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China
Zhaoyin Wen*
Affiliation:
CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China
Jingchao Zhang
Affiliation:
CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, People’s Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Li-stabilized Na-β″/β-Al2O3(Na1.61Li0.29Al10.70O17) nanorods were prepared by a soft chemistry process using a 1-alkyl-3-methylimidazolium bromide ([CXmim]Br, X = 4, 12, 16) ionic liquid as a template. Pure Na-β″/β-Al2O3 rods were obtained by heating at 1100 °C with [C16mim]Br as the template, resulting in nanorods of approximately 50 nm in diameter and 200–300 nm in length. It is demonstrated that alkyl chain length is the main factor determining the aspect ratio of the nanorods. The specific surface area of the powder is 81.3 m2/g, which is more than one order of magnitude higher than that of the powder prepared by a conventional solid state reaction process. The formation mechanism of the nanorods is proposed.

Type
Articles
Information
Journal of Materials Research , Volume 28 , Issue 15 , 14 August 2013 , pp. 2017 - 2022
Copyright
Copyright © Materials Research Society 2013 

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References

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