Temperature–Programmed Separation of Hexane Isomers by a Porous Calcium Chloranilate Metal–Organic Framework
- Shenzhen Polytechnic, Guangdong (China); Rutgers University
- Shenzhen Polytechnic, Guangdong (China); South China University of Technology, Guangzhou (China)
- Wake Forest University, Winston-Salem, NC (United States)
- Shenzhen Polytechnic, Guangdong (China)
- South China University of Technology, Guangzhou (China)
- Shenzhen Polytechnic, Guangdong (China); Rutgers University, Piscataway, NJ (United States)
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. Furthermore, ab initio calculations have uncovered the underlying selective size-exclusion separation mechanism.
- Research Organization:
- Wake Forest University, Winston-Salem, NC (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0019902
- OSTI ID:
- 2305537
- Alternate ID(s):
- OSTI ID: 1902464
- Journal Information:
- Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 50 Vol. 61; ISSN 1433-7851
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
High–Capacity Splitting of Mono– and Dibranched Hexane Isomers by a Robust Zinc–Based Metal–Organic Framework