Details
| Original language | English |
|---|---|
| Pages (from-to) | 224-234 |
| Number of pages | 11 |
| Journal | Chemical Engineering and Technology |
| Volume | 41 |
| Issue number | 2 |
| Early online date | 15 Dec 2017 |
| Publication status | Published - 29 Jan 2018 |
Abstract
The switching of gas permeation and adsorption on polymers, zeolites, and metal-organic frameworks (MOFs) by external stimuli like temperature, pressure, light, and electric fields is discussed. Especially MOFs as soft porous crystals are suitable candidates for switching gas transport. If the linker of a MOF contains a cis-trans switchable azo moiety, switching of the trans state into the cis state reduces gas transport through a MOF membrane. On the other hand, MOFs with dipolar or ionic components can be switched upon polarization with an electric field into polymorphs of the starting MOF. A ZIF-8 membrane can be switched into a polymorph with a rather stiff lattice, which sharpens the molecular sieving effect of the membrane, and, as an example, the propene/propane selectivity increases.
Keywords
- Adsorption switching, External stimuli, Membrane switching, Metal-organic framework
ASJC Scopus subject areas
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In: Chemical Engineering and Technology, Vol. 41, No. 2, 29.01.2018, p. 224-234.
Research output: Contribution to journal › Review article › Research › peer review
}
TY - JOUR
T1 - Smart Metal-Organic Frameworks (MOFs)
T2 - Switching Gas Permeation through MOF Membranes by External Stimuli
AU - Knebel, Alexander
AU - Zhou, Chen
AU - Huang, Aisheng
AU - Zhang, Jian
AU - Kustov, Leonid
AU - Caro, Juergen
N1 - Funding Information: The authors thank CAS for the installation of the innovation team K. C. Wong Education Foundation (rczx0800). The Chinese Academy of Sciences is thanked for the Visiting Professorship for Senior International Scientists (grant no. 2013T1G0047). The authors are grateful for the project funding on Novel Functional Materials for Sustainable Chemistry through the DFG (grant no. Ca 147/21) and NSFC (grant no. 21761132003). L. Kustov acknowledges the support of the Russian Science Foundation (grant no. 14-50-00126).
PY - 2018/1/29
Y1 - 2018/1/29
N2 - The switching of gas permeation and adsorption on polymers, zeolites, and metal-organic frameworks (MOFs) by external stimuli like temperature, pressure, light, and electric fields is discussed. Especially MOFs as soft porous crystals are suitable candidates for switching gas transport. If the linker of a MOF contains a cis-trans switchable azo moiety, switching of the trans state into the cis state reduces gas transport through a MOF membrane. On the other hand, MOFs with dipolar or ionic components can be switched upon polarization with an electric field into polymorphs of the starting MOF. A ZIF-8 membrane can be switched into a polymorph with a rather stiff lattice, which sharpens the molecular sieving effect of the membrane, and, as an example, the propene/propane selectivity increases.
AB - The switching of gas permeation and adsorption on polymers, zeolites, and metal-organic frameworks (MOFs) by external stimuli like temperature, pressure, light, and electric fields is discussed. Especially MOFs as soft porous crystals are suitable candidates for switching gas transport. If the linker of a MOF contains a cis-trans switchable azo moiety, switching of the trans state into the cis state reduces gas transport through a MOF membrane. On the other hand, MOFs with dipolar or ionic components can be switched upon polarization with an electric field into polymorphs of the starting MOF. A ZIF-8 membrane can be switched into a polymorph with a rather stiff lattice, which sharpens the molecular sieving effect of the membrane, and, as an example, the propene/propane selectivity increases.
KW - Adsorption switching
KW - External stimuli
KW - Membrane switching
KW - Metal-organic framework
UR - http://www.scopus.com/inward/record.url?scp=85040717565&partnerID=8YFLogxK
U2 - 10.1002/ceat.201700635
DO - 10.1002/ceat.201700635
M3 - Review article
AN - SCOPUS:85040717565
VL - 41
SP - 224
EP - 234
JO - Chemical Engineering and Technology
JF - Chemical Engineering and Technology
SN - 0930-7516
IS - 2
ER -