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Titanium-Oxo Cluster Assisted Fabrication of a Defect-Rich Ti-MOF Membrane Showing Versatile Gas-Separation Performance.
- Source :
-
Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2022 Jun 27; Vol. 61 (26), pp. e202203663. Date of Electronic Publication: 2022 May 03. - Publication Year :
- 2022
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Abstract
- Although having shown great promise for efficient gas separation, relevant study of Ti-MOF membranes remains very scarce, owing to limited Ti source types and uncertain factors which dominate the separation properties. In this work, we pioneered the use of the Ti <subscript>8</subscript> (μ <subscript>2</subscript> -O) <subscript>8</subscript> (OOCC <subscript>6</subscript> H <subscript>5</subscript> ) <subscript>16</subscript> cluster as the Ti source of MIL-125 membranes, which led to lower reaction temperature and higher missing-linker number within the framework and therefore, enhanced CO <subscript>2</subscript> /N <subscript>2</subscript> adsorption selectivity. The MIL-125 membrane prepared by combining single-mode microwave heating with tertiary growth displayed an ideal CO <subscript>2</subscript> /N <subscript>2</subscript> selectivity of 38.7, which ranked the highest among all pristine pure MOF membranes measured under comparable conditions. In addition, the ideal H <subscript>2</subscript> /N <subscript>2</subscript> and H <subscript>2</subscript> /CH <subscript>4</subscript> selectivity was as high as 64.9 and 40.7, thus showing great promise for versatile utility in gas separation.<br /> (© 2022 Wiley-VCH GmbH.)
Details
- Language :
- English
- ISSN :
- 1521-3773
- Volume :
- 61
- Issue :
- 26
- Database :
- MEDLINE
- Journal :
- Angewandte Chemie (International ed. in English)
- Publication Type :
- Academic Journal
- Accession number :
- 35420737
- Full Text :
- https://doi.org/10.1002/anie.202203663