Details
| Original language | English |
|---|---|
| Pages (from-to) | 1346-1353 |
| Number of pages | 8 |
| Journal | Nature Materials |
| Volume | 19 |
| Early online date | 10 Aug 2020 |
| Publication status | Published - Dec 2020 |
Abstract
The combination of well-defined molecular cavities and chemical functionality makes crystalline porous solids attractive for a great number of technological applications, from catalysis to gas separation. However, in contrast to other widely applied synthetic solids such as polymers, the lack of processability of crystalline extended solids hampers their application. In this work, we demonstrate that metal–organic frameworks, a type of highly crystalline porous solid, can be made solution processable via outer surface functionalization using N-heterocyclic carbene ligands. Selective outer surface functionalization of relatively large nanoparticles (250 nm) of the well-known zeolitic imidazolate framework ZIF-67 allows for the stabilization of processable dispersions exhibiting permanent porosity. The resulting type III porous liquids can either be directly deployed as liquid adsorbents or be co-processed with state-of-the-art polymers to yield highly loaded mixed matrix membranes with excellent mechanical properties and an outstanding performance in the challenging separation of propylene from propane. We anticipate that this approach can be extended to other metal–organic frameworks and other applications.
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Nature Materials, Vol. 19, 12.2020, p. 1346-1353.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Solution processable metal–organic frameworks for mixed matrix membranes using porous liquids
AU - Knebel, Alexander
AU - Bavykina, Anastasiya
AU - Datta, Shuvo Jit
AU - Sundermann, Lion
AU - Garzon-Tovar, Luis
AU - Lebedev, Yury
AU - Durini, Sara
AU - Ahmad, Rafia
AU - Kozlov, Sergey M.
AU - Shterk, Genrikh
AU - Karunakaran, Madhavan
AU - Carja, Ionela Daniela
AU - Simic, Dino
AU - Weilert, Irina
AU - Klüppel, Manfred
AU - Giese, Ulrich
AU - Cavallo, Luigi
AU - Rueping, Magnus
AU - Eddaoudi, Mohamed
AU - Caro, Jürgen
AU - Gascon, Jorge
N1 - Funding Information: L.S., A.K. and J.C. acknowledge support by the Deutsche Forschungsgemeinschaft in the priority program SPP 1928 COORNETs (Coordination Networks: Building Block for Functional Systems), grant no. CA 147/20-1 (J.C.). R.A., S.K and L.C. acknowledge the Supercomputing Laboratory at KAUST for computational resources (Cray XC40, ShaheenII). We thank P. M. Bhatt for helping with the propylene/propane adsorption kinetic study. King Abdullah University of Science and Technology is acknowledged for financial support.
PY - 2020/12
Y1 - 2020/12
N2 - The combination of well-defined molecular cavities and chemical functionality makes crystalline porous solids attractive for a great number of technological applications, from catalysis to gas separation. However, in contrast to other widely applied synthetic solids such as polymers, the lack of processability of crystalline extended solids hampers their application. In this work, we demonstrate that metal–organic frameworks, a type of highly crystalline porous solid, can be made solution processable via outer surface functionalization using N-heterocyclic carbene ligands. Selective outer surface functionalization of relatively large nanoparticles (250 nm) of the well-known zeolitic imidazolate framework ZIF-67 allows for the stabilization of processable dispersions exhibiting permanent porosity. The resulting type III porous liquids can either be directly deployed as liquid adsorbents or be co-processed with state-of-the-art polymers to yield highly loaded mixed matrix membranes with excellent mechanical properties and an outstanding performance in the challenging separation of propylene from propane. We anticipate that this approach can be extended to other metal–organic frameworks and other applications.
AB - The combination of well-defined molecular cavities and chemical functionality makes crystalline porous solids attractive for a great number of technological applications, from catalysis to gas separation. However, in contrast to other widely applied synthetic solids such as polymers, the lack of processability of crystalline extended solids hampers their application. In this work, we demonstrate that metal–organic frameworks, a type of highly crystalline porous solid, can be made solution processable via outer surface functionalization using N-heterocyclic carbene ligands. Selective outer surface functionalization of relatively large nanoparticles (250 nm) of the well-known zeolitic imidazolate framework ZIF-67 allows for the stabilization of processable dispersions exhibiting permanent porosity. The resulting type III porous liquids can either be directly deployed as liquid adsorbents or be co-processed with state-of-the-art polymers to yield highly loaded mixed matrix membranes with excellent mechanical properties and an outstanding performance in the challenging separation of propylene from propane. We anticipate that this approach can be extended to other metal–organic frameworks and other applications.
UR - http://www.scopus.com/inward/record.url?scp=85089248704&partnerID=8YFLogxK
U2 - 10.1038/s41563-020-0764-y
DO - 10.1038/s41563-020-0764-y
M3 - Article
C2 - 32778813
AN - SCOPUS:85089248704
VL - 19
SP - 1346
EP - 1353
JO - Nature Materials
JF - Nature Materials
SN - 1476-1122
ER -