Isomorphous substitution in the microporous titanosilicate ETS-10

被引：49

作者：

Anderson, MW ^{[1
]}

Rocha, J ^{[1
]}

Lin, Z ^{[1
]}

Philippou, A ^{[1
]}

Orion, I ^{[1
]}

Ferreira, A ^{[1
]}

机构：

[1] UNIV AVEIRO,DEPT CHEM,P-3800 AVEIRO,PORTUGAL

来源：

MICROPOROUS MATERIALS | 1996年 / 6卷 / 04期

关键词：

zeolite; titanosilicate; ETS-10; solid-state NMR; isomorphous substitution;

D O I：

10.1016/0927-6513(95)00098-4

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Silicon has been isomorphously substituted by aluminium and gallium in the microporous titanosilicate ETS-10 to produce ETAS-10 and ETGS-10 respectively. For aluminium substitution a series of samples have been prepared with Al/Ti ratios ranging from 0.10 to 0.48. Both aluminium and gallium substitute exclusively in tetrahedral silicon sites in a manner which avoids Ti-O-Al and Ti-O-Ga linkages. Based upon detailed analysis of solid-state NMR spectra, models for the ordering of aluminium in ETAS-10 are discussed.

引用

页码：195 / 204

页数：10

共 15 条

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