Synthesis of Microporous Zincosilicate *BEA Molecular Sieves from Zincosilicate Gels Co-precipitated in the Presence of an Organic Structure-directing Agent

被引：2

作者：

Koike, Natsume ^{[1
]}

Iyoki, Kenta ^{[1
]}

Chaikittisilp, Watcharop ^{[1
]}

Okubo, Tatsuya ^{[1
]}

机构：

[1] Univ Tokyo, Dept Chem Syst Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan

来源：

CHEMISTRY LETTERS | 2018年 / 47卷 / 07期

基金：

日本学术振兴会;

关键词：

Zincosilicate; *BEA zeolite; Co-precipitation; TETRAETHYLAMMONIUM CATION; FRAMEWORK ZINC; ZEOLITE-BETA; CIT-6; CRYSTALLIZATION;

D O I：

10.1246/cl.180264

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A facile method for synthesizing microporous zincosilicate *BEA molecular sieves was proposed using co-precipitated homogeneous zincosilicate gels containing the tetraethylammonium cation (TEA(+)) as an organic structure-directing agent. Characterization of the co-precipitated gels indicated that zinc species and TEA(+) were distributed in the silicate matrix. Zincosilicate *BEA molecular sieves with a high zinc content were obtained from the gels, while highly crystalline molecular sieves could not be synthesized using conventional zinc and silicon sources under the same conditions.

引用

页码：897 / 900

页数：4