Preparation of monolithic tantalic oxide aerogel from tantalic pentachloride

ren hong-bo; wang xian; zhang lin; zhang yong; bi yu-tie; wan xiao-bo

Volume 20 Issue 01

Jan. 2008

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Article Navigation > High Power Laser and Particle Beams > 2008 > 20(01): 0-

guan feng, wang chao-yang, tang yong-jian, et al. Aligned carbon nanotubes growing on catalyst film prepared by spin coating[J]. High Power Laser and Particle Beams, 2007, 19.

Citation:

ren hong-bo, wang xian, zhang lin, et al. Preparation of monolithic tantalic oxide aerogel from tantalic pentachloride[J]. High Power Laser and Particle Beams, 2008, 20.

guan feng, wang chao-yang, tang yong-jian, et al. Aligned carbon nanotubes growing on catalyst film prepared by spin coating[J]. High Power Laser and Particle Beams, 2007, 19.

Citation:

ren hong-bo, wang xian, zhang lin, et al. Preparation of monolithic tantalic oxide aerogel from tantalic pentachloride[J]. High Power Laser and Particle Beams, 2008, 20.

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Preparation of monolithic tantalic oxide aerogel from tantalic pentachloride

1.
Research Center of Laser Fusion,CAEP,P.O.Box 919-987,Mianyang 621900,China

Publish Date: 2008-01-15

Abstract

Abstract

Monolithic tantalic oxide aerogels were synthesized from inorganic salt precursors, tantalic pentachloride by hydrolysis and condensation in alcohol solvent. The propylene oxide and the epichlorohydrin were used as gelling agent respectively. The tantalic oxide wet gels was obtained and washed in acetone to remove water and remaining PO. Finally, the wet gels were dried in supercritical CO2 instrument. This approach is straightforward, inexpensive and versatile, it produces monolithic mesoporous materials with high specific surface areas and very low bulk density. Dried tantalic oxide aerogel is characterized by transmission electron microscopy(TEM) and nitrogen adsorption/ desorption analyses, and the specific surface area is about 800~ 900 m2/g.
- icf,
- tantalic oxide,
- aerogel,
- gelling agent

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