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Issue 19, 2010
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HKUST-1membranes on porous supports using secondary growth

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Abstract

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 α-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.

Graphical abstract: HKUST-1 membranes on porous supports using secondary growth

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Article information


Submitted
23 Nov 2009
Accepted
18 Feb 2010
First published
19 Mar 2010

J. Mater. Chem., 2010,20, 3938-3943
Article type
Paper

HKUST-1 membranes on porous supports using secondary growth

V. V. Guerrero, Y. Yoo, M. C. McCarthy and H. Jeong, J. Mater. Chem., 2010, 20, 3938
DOI: 10.1039/B924536G

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