HKUST-1 membranes on porous supports using secondary growth

被引：204

作者：

Guerrero, Victor Varela ^{[2
]}

Yoo, Yeonshick ^{[1
]}

McCarthy, Michael C. ^{[1
]}

Jeong, Hae-Kwon ^{[1
,2
]}

机构：

[1] Texas A&M Univ, Artie McFerrin Dept Chem Engn, College Stn, TX 77843 USA

[2] Texas A&M Univ, Mat Sci & Engn Program, College Stn, TX 77843 USA

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2010年 / 20卷 / 19期

基金：

美国国家科学基金会;

关键词：

METAL-ORGANIC FRAMEWORKS; THIN-FILMS; MOLECULAR-SIEVE; CU-3(BTC)(2); SEPARATION; MONOLAYERS; DIFFUSION; COATINGS; SORPTION; ALUMINA;

D O I：

10.1039/b924536g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Here we report the synthesis of continuous HKUST-1 membranes on porous supports via the secondary (i.e., seeded) growth method. A new seeding technique ("thermal seeding'') was developed to strongly anchor HKUST-1 seed crystals on porous a-alumina supports. It was found critical to have both organic ligands and copper species in the seed suspension as well as to seed the crystals at elevated temperature. The HKUST-1 seed crystals on the supports were then hydrothermally grown into continuous HKUST-1 films. The formation of cracks and fractures in the films was prevented by controlling the cooling and the drying processes after crystallization. The permeation results of HKUST-1 membranes show moderate separation of hydrogen over other small gas molecules such as carbon dioxide, nitrogen, oxygen, and methane.

引用

页码：3938 / 3943

页数：6

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