Temperature‐Programmed Separation of Hexane Isomers by a Porous Calcium Chloranilate Metal‐Organic Framework
- Hoffmann Institute of Advanced Materials Shenzhen Polytechnic 7098 Liuxian Boulevard Shenzhen Guangdong 518055 P. R. China
- Hoffmann Institute of Advanced Materials Shenzhen Polytechnic 7098 Liuxian Boulevard Shenzhen Guangdong 518055 P. R. China, School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 P. R. China
- Department of Physics and Center for Functional Materials Wake Forest University Winston-Salem NC 27109 USA
- School of Chemistry and Chemical Engineering South China University of Technology Guangzhou 510640 P. R. China
- Hoffmann Institute of Advanced Materials Shenzhen Polytechnic 7098 Liuxian Boulevard Shenzhen Guangdong 518055 P. R. China, Department of Chemistry and Chemical Biology Rutgers University 123 Bevier Road Piscataway NJ 08854 USA
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.
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- SC0019902
- OSTI ID:
- 1902540
- Journal Information:
- Angewandte Chemie, Journal Name: Angewandte Chemie Journal Issue: 50 Vol. 134; ISSN 0044-8249
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- Germany
- Language:
- English
Similar Records
High‐Capacity Splitting of Mono‐ and Dibranched Hexane Isomers by a Robust Zinc‐Based Metal–Organic Framework