CONTROL OF THE SPECIFIC SURFACE-AREA OF SILICA BY A SOL-GEL PROCESS USING 2-METHYLPENTANE-2,4-DIOL

被引：24

作者：

ZEHL, G

BISCHOFF, S

MIZUKAMI, F

ISUTZU, H

BARTOSZEK, M

JANCKE, H

LUCKE, B

MAEDA, K

机构：

[1] NATL INST MAT & CHEM RES,TSUKUBA,IBARAKI 305,JAPAN

[2] TAKI CHEM CO LTD,KAKOGAWA,HYOGO 67501,JAPAN

[3] FED INST MAT RES & TESTING,D-12489 BERLIN,GERMANY

来源：

JOURNAL OF MATERIALS CHEMISTRY | 1995年 / 5卷 / 11期

关键词：

D O I：

10.1039/jm9950501893

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

An improved method for the preparation of porous silica xerogels is described. Tetraethoxysilane (TEOS) as the starting alkoxide is modified by transesterification with 2-methylpentane-2,4-diol (MPD) prior to hydrolysis. The specific surface area and the pore size distribution of the calcined gels can be easily controlled by variation of the preparation parameters. Thus, a xerogel exhibiting a specific surface area of 1108 m(2) g(-1) was obtained after calcination at 450 degrees C for 4 h. The species formed by the transesterification of tetramethoxysilane (TMOS) with MPD were studied by Si-29 NMR spectroscopy and chemical ionisation mass spectroscopy (Cl MS).

引用

页码：1893 / 1897

页数：5

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