Formation and characterization of tin oxide aerogel derived from sol-gel process based on tetra(n-butoxy)tin(IV)
Data(s) |
2005
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Resumo |
Transparent and translucent SnO2 aerogels with high specific surface area (>300m(2)/g) have been prepared by sol-gel process using tetra(n-butoxy)tin(IV) as a starting compound, and supercritical drying technique for solvent extraction. Light scattering measurements reveal that the polymeric cluster size distribution in sol system is gradually broadened during sol-gel transition. SEM images show that the aerogels are made up of the cottonlike oxide agglomerates with a large number of Pores. TEM images show that these aerogels seem to be self-similar at different magnifications. Their pore size distribution is pretty wide ranging, from mesopore to macropore especially for that of translucent aerogel. (C) 2004 Elsevier B.V. All rights reserved. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Huang R;Hou LS;Zhou B;Zhao QT;Ren SH.,J. Non-Cryst. Solids,2005,351(1):23-28 |
Palavras-Chave | #光存储 #DEFECT ELECTRONIC STATES #SILICA AEROGELS #STRUCTURAL-PROPERTIES #TRANSPARENCY #TRANSITION #SURFACE |
Tipo |
期刊论文 |