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Highly Permeable Zeolite Imidazolate Framework-8 Membranes for CO 2 /CH 4 Separation

2009; American Chemical Society; Volume: 132; Issue: 1 Linguagem: Inglês

10.1021/ja909263x

1943-2984

Surendar R. Venna, Moisés A. Carreón,

Covalent Organic Framework Applications

ZIF-8 membranes, a type of zeolite imidazolate framework, were synthesized by secondary seeded growth on tubular α-Al2O3 porous supports. The presence of small, highly crystalline, microporous crystals with narrow particle size distribution led to continuous thin membranes. The synthesized novel ZIF-8 membranes displayed unprecedented high CO2 permeances and relatively high separation indexes for equimolar mixtures of CO2 and CH4.