Propane and 1,3,5-triisopropylbenzene single gas adsorption on hollow silicalite-1 spheres

被引：7

作者：

Casado, Clara

Bosque, Jorge

Navascues, Nuria

Tellez, Carlos ^{[1
]}

Coronas, Joaquin

机构：

[1] Univ Zaragoza, Dept Environm Chem & Engn, Zaragoza 50018, Spain

来源：

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

关键词：

Mesoporous silica spheres; Silicalite-1; Hollow zeolite spheres; Propane; Hydrocarbon adsorption; MOLECULAR SIMULATION; FABRICATION; PROPYLENE; HYDROCARBONS; EQUILIBRIUM; ZEOLITES; SORPTION; ALKANES;

D O I：

10.1016/j.micromeso.2008.09.045

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Mesoporous silica spheres (seeded by silicalite-1 nanocrystals) were converted to zeolite in a solution containing TEOS as silica source and producing zeolite hollow spheres with diameter in the 2-4 mu m range. These spheres were characterized on the propane and 1,3,5-triisopropylbenzene (TPB) single gas adsorption. Propane adsorption on the hollow silicalite-1 spheres was higher than on their precursor mesoporous silica spheres, but similar to that of the silicalite-1 crystals, which indicates a weak influence of the hollow nature of silicalite-1 spheres for such a small molecule. Instead, TPB adsorption on the hollow silicalite-1 spheres was higher than that of silicalite-1 crystals and different to mesoporous silica spheres. The potential advantage of hollow silicalite-1 spheres in the storage and control release of big molecules was shown. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：69 / 75

页数：7

共 28 条

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