A new step toward transition metal incorporation in cubic mesoporous materials: Preparation and characterization of Ti-MCM-48

被引：106

作者：

Morey, M

Davidson, A

Stucky, G

机构：

[1] UNIV CALIF SANTA BARBARA,MAT RES LAB,SANTA BARBARA,CA 93106

[2] UNIV PARIS 06,LAB REACTIV SURFACE,F-75252 PARIS 05,FRANCE

来源：

MICROPOROUS MATERIALS | 1996年 / 6卷 / 02期

关键词：

titanium-silicate; mesopore; MCM-48 (cubic); silanol defects;

D O I：

10.1016/0927-6513(95)00090-9

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A mesoporous material containing Ti and Si atoms in the walls, which is isomorphous to the cubic MCM-48 silicate structure has been synthesized by using a gemini surfactant. Characterization (XRD, BET, UV-Visible, IR and Raman) shows that the titanium atoms are well dispersed, probably substituting silicon atoms in the mesoporous walls. Spectral features within the range 980-970 cm(-1), observed by Raman and photoacoustic FT-IR spectroscopies, indicate the presence of silanol groups inside the mesoporous channels in both the blank and the Ti containing samples whereas an IR absorption near 960 cm(-1), observed only for Ti-MCM-48 samples, is associated with the Ti incorporation.

引用

页码：99 / 104

页数：6

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