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Fabrication and characterization of mesoporous borosilicate glasses with different boron contents

Published online by Cambridge University Press:  31 January 2011

Tongping Xiu
Affiliation:
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Shanghai, 200050 People’s Republic of China; and Graduate School of the Chinese Academy of Sciences, Beijing, 100039 People’s Republic of China
Qian Liu*
Affiliation:
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Shanghai, 200050 People’s Republic of China
Jiacheng Wang
Affiliation:
State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Shanghai, 200050 People’s Republic of China; and Graduate School of the Chinese Academy of Sciences, Beijing, 100039 People’s Republic of China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

A series of wormhole-like mesoporous borosilicate glasses (MBSGs) with different compositions has been prepared by a combination of surfactant templating, sol-gel methods, and evaporation-induced self-assembly processes. Small-angle x-ray diffraction, high-resolution transmission electron microscopy, and N2 sorption isotherms analysis showed that all the MBSGs prepared possess the mesoporous structure. However, the stability of the mesoporous structure is strongly affected by the boron contents. When boron content was increased, boric acid was found in the final product, and the mesoporous structure was partially degraded. The formation and loss of boric acid through the whole process may account for the partial collapse of the mesostructure.

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Copyright
Copyright © Materials Research Society 2007

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References

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