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Fabrication of mesoporous bulk composed of titanate nanotubes by hydrothermal hot-pressing technique

Published online by Cambridge University Press:  03 March 2011

Takashi Kubo ,
Atsushi Nakahira  and
Yuki Yamasaki
Takashi Kubo*
Affiliation:
Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University, Sakai-shi, Osaka 599-8531, Japan
Atsushi Nakahira
Affiliation:
Department of Materials Science, Graduate School of Engineering, Osaka Prefecture University, Sakai-shi, Osaka 599-8531, Japan
Yuki Yamasaki
Affiliation:
Department of Materials Science, Osaka Prefectural College of Technology, Neyagawa-shi, Osaka 572-8572, Japan
*
a) Address all correspondence to this author. e-mail: kubo-t@mtr.osakafu-u.ac.jp
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Abstract

In this study, bulky titanate nanotubes with dense microstructures were successfully fabricated by a hydrothermal hot-pressing (HHP) technique with water as a reactive solvent. Titanate-based nanotubes of about 10 nm outer diameter and 5 nm inner diameter and a few hundred nanometers in length were synthesized by a hydrothermal treatment of anatase-type TiO2 powder in a 10 M NaOH aqueous solution. From results of N2-adsorption and transmission electron microscopy observation, it was obvious that HHP processed samples were composed of nanotubular structures and that the obtained bulks possessed mesopores and high Brunauer–Emmett–Teller surface area. These results suggested that the obtained bulks possessed functionality as good as that of powders of titanate nanotubes. Thus, the HHP technique may be a useful method for fabricating bulky titanate nanotubes and may be applied in the solidification of the other some nanotubular materials.

Keywords

CeramicHydrothermalNanoscale
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 5 , May 2007 , pp. 1286 - 1291
Copyright
Copyright © Materials Research Society 2007

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References

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