1. Temperature‐Programmed Separation of Hexane Isomers by a Porous Calcium Chloranilate Metal‐Organic Framework.
- Author
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Lin, Yuhan, Yu, Liang, Ullah, Saif, Li, Xingyu, Wang, Hao, Xia, Qibin, Thonhauser, Timo, and Li, Jing
- Subjects
- *
METAL-organic frameworks , *HEXANE , *AB-initio calculations , *CALCIUM , *HIGH temperatures - Abstract
The full separation of alkane isomers as a function of different degrees of branching remains a daunting challenge due to its stringent requirement with respect to pore dimensions of the adsorbents. In this work, we report a novel microporous coordination network built on calcium (II) and chloranilate. The compound has a flexible framework and exhibits temperature‐dependent adsorption behavior toward hexane isomers. At 30 °C, it accommodates substantial amounts of linear and monobranched hexanes but fully excludes their dibranched isomer, and at elevated temperatures such as 150 °C, it acts as a splitter for linear and branched alkanes. Its capability of efficient discrimination of hexane isomers as a function of branching is verified by experimental breakthrough measurements. Ab initio calculations have uncovered the underlying selective size‐exclusion separation mechanism. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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