Engineering Structural Dynamics of Zirconium Metal–Organic Frameworks Based on Natural C4 Linkers
Journal Article
·
· Journal of the American Chemical Society
- PSL Université, Institut des Matériaux Poreux de Paris, (France); Univ. of Science and Technology of China, Hefei (China); University of Texas at Dallas
- PSL Université, Institut des Matériaux Poreux de Paris, (France)
- Université Montpellier, Place Eugène Bataillon (France)
- Univ. of Texas at Dallas, Richardson, TX (United States)
- Université Catholique de Louvain, Louvain-la-Neuve (Belgium)
- Université de Versailles Saint-Quentin-en-Yvelines, Université Paris-Saclay (France)
- Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, Gif-Sur-Yvette (France)
- Université de Versailles Saint-Quentin-en-Yvelines, Université Paris-Saclay (France); CEMHTI (France)
- Université Catholique de Louvain (Belgium)
- PSL Université, Institut des Matériaux Poreux de Paris (France)
Engineering the structural flexibility of MOF materials for separation-related applications remains a great challenge. In this paper, we present a strategy of mixing rigid and soft linkers in a MOF structure to achieve tunable structural flexibility, as exemplified in a series of stable isostructural Zr-MOFs built with natural C4 linkers (fumaric acid, succinic acid and malic acid). As shown by the differences in linker bond stretching and bending freedom, these MOFs display distinct responsive dynamics to external stimuli, namely changes in temperature or guest molecule type. Comprehensive in-situ characterizations reveal a clear correlation between linker character and MOF dynamic behavior, which leads to the discovery of a multivariate flexible MOF. It shows an optimal combination of both good working capacity and significantly enhanced selectivity for CO2/N2 separation. In principle, it provides a new avenue for potentially improving the ability of microporous MOFs to separate other gaseous and liquid mixtures.
- Research Organization:
- Univ. of Texas at Dallas, Richardson, TX (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
- Grant/Contract Number:
- FG02-08ER46491; SC0019902
- OSTI ID:
- 1604798
- Journal Information:
- Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 43 Vol. 141; ISSN 0002-7863
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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