b-Oriented MFI membranes prepared from porous silica coatings

被引：24

作者：

Aguado, Sonia ^{[1
]}

McLeary, E. E. ^{[2
]}

Nijmeijer, Arian ^{[3
]}

Luiten, Mieke ^{[3
]}

Jansen, Jacobus C. ^{[1
]}

Kapteijn, Freek ^{[1
]}

机构：

[1] Delft Univ Technol, DelftChemTech, Catalysis Engn, NL-2628 BL Delft, Netherlands

[2] Univ Stellenbosch, Dept Chem, RSA, ZA-7600 Stellenbosch, South Africa

[3] Univ Twente, Inst Mech Proc & Control, IMPACT, Inorgan Membrane Grp, NL-7500 AE Enschede, Netherlands

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2009年 / 120卷 / 1-2期

关键词：

Zeolite; MFI; Film; Orientation; In situ crystallization; IN-SITU CRYSTALLIZATION; THIN-FILMS; ZEOLITE MEMBRANE; OPTIMIZATION; SEPARATION; CRYSTALS; GAS; GROWTH; LAYERS;

D O I：

10.1016/j.micromeso.2008.08.059

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The preparation of b-oriented MFI films from porous silica layers was investigated and optimized. The alumina supported silica membranes were immersed in a concentrated TPAOH solution. Finally b-oriented and well-intergrown MFI crystal films were produced by carrying out an in situ hydrothermal synthesis using a synthesis solution 1 SiO(2):0.05 TPAOH:37.5-169 H(2)O:0.15 NaOH. The main function of the silica is twofold, it serves as a nucleation layer for the silicalite-1 and provides a smooth surface for the oriented crystal growth into a continuous layer. Prolonged synthesis duration leads to the formation of a secondary layer with increasing a-orientation. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：165 / 169

页数：5

共 21 条

[1] THE PREPARATION AND CHARACTERIZATION OF ALPO4 THIN-FILMS VIA LASER-ABLATION OF ALPO4-H-4 [J].