Type

Journal Article

Authors

Michael J Zaworotko
Jun He
Zhengtao Xu
Brian Space
Andrey A. Bezrukov
Wan-Ru Xian
Shi-Qiang Wang
Douglas M. Franz
Yonghe He
Soumya Mukherjee

Subjects

Chemistry

Topics
industrial processes inorganic anions selectivity separation co2 energy footprint physicochemical properties binding

Halogen-2H2 binding in ultramicroporous MOFs for benchmark C2H2/CO2 separation selectivity (2020)

Abstract The full text of this article will not be available in ULIR until the embargo expires on the 07/01/2021 Acetylene (C2H2) capture is a step in a number of industrial processes but comes with a high energy footprint. Whereas physisorbents have the potential to reduce this energy footprint, they are handicapped by generally poor selectivity vs. other relevant gases such as CO2 and C2H4. In the case of CO2, the respective physicochemical properties are so similar that traditional physisorbents such as zeolites, silica and activated carbons cannot differentiate well between CO2 and C2H2. Herein we report that a family of three isostructural, ultramicroporous (< 7 Å) diamondoid metal-organic frameworks, [Cu(TMBP)X] (TMBP = 3,3',5,5'tetramethyl-4,4'-bipyrazole), TCuX (X = Cl, Br, I), offer new benchmark C2H2/CO2 separation selectivity at ambient temperature and pressure. We attribute this performance to a new type of strong binding site for C2H2. Specifically, halogen…HC interactions coupled with other noncovalent in a tight binding site is C2H2-specific vs. CO2. The binding site is distinct from those found in previous benchmark sorbents, which are based upon open metal sites or electrostatic interactions enabled by inorganic fluoro or oxo anions.
Collections Ireland -> University of Limerick -> Centres Science and Engineering
Ireland -> University of Limerick -> Faculty of Science and Engineering
Ireland -> University of Limerick -> Bernal Institute

Full list of authors on original publication

Michael J Zaworotko, Jun He, Zhengtao Xu, Brian Space, Andrey A. Bezrukov, Wan-Ru Xian, Shi-Qiang Wang, Douglas M. Franz, Yonghe He, Soumya Mukherjee

Experts in our system

1
Michael J Zaworotko
University of Limerick
Total Publications: 62
 
2
Brian Space
University of Limerick
Total Publications: 23
 
3
Andrey A. Bezrukov
University of Limerick
Total Publications: 4
 
4
Shi-Qiang Wang
University of Limerick
Total Publications: 10
 
5
Douglas M. Franz
University of Limerick
Total Publications: 4
 
6
Soumya Mukherjee
University of Limerick
Total Publications: 11