Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 4365-4369 |
| Seitenumfang | 5 |
| Fachzeitschrift | Angewandte Chemie |
| Jahrgang | 59 |
| Ausgabenummer | 11 |
| Frühes Online-Datum | 1 Jan. 2020 |
| Publikationsstatus | Veröffentlicht - 2 März 2020 |
Abstract
Metal–organic framework (MOF) glasses are promising candidates for membrane fabrication due to their significant porosity, the ease of processing, and most notably, the potential to eliminate the grain boundary that is unavoidable for polycrystalline MOF membranes. Herein, we developed a ZIF-62 MOF glass membrane and exploited its intrinsic gas-separation properties. The MOF glass membrane was fabricated by melt-quenching treatment of an in situ solvothermally synthesized polycrystalline ZIF-62 MOF membrane on a porous ceramic alumina support. The molten ZIF-62 phase penetrated into the nanopores of the support and eliminated the formation of intercrystalline defects in the resultant glass membrane. The molecular sieving ability of the MOF membrane is remarkably enhanced via vitrification. The separation factors of the MOF glass membrane for H2/CH4, CO2/N2 and CO2/CH4 mixtures are 50.7, 34.5, and 36.6, respectively, far exceeding the Robeson upper bounds.
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in: Angewandte Chemie , Jahrgang 59, Nr. 11, 02.03.2020, S. 4365-4369.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - A MOF Glass Membrane for Gas Separation
AU - Wang, Yuhan
AU - Jin, Hua
AU - Ma, Qiang
AU - Mo, Kai
AU - Mao, Haizhuo
AU - Feldhoff, Armin
AU - Cao, Xingzhong
AU - Li, Yanshuo
AU - Pan, Fusheng
AU - Jiang, Zhongyi
N1 - Funding Information: This work was supported by the National Natural Science Foundation of China (NO. 21838008, 21878216, 21808113, 21622607, 21761132009, U1732120), National Key R&D Program of China (2017YFA0403801), National Natural Science Foundation of Zhejiang (No. LR18B060002), “Ten thousand plan” high‐level talents special support plan of Zhejiang province (No. ZJWR0108011), Major Special Projects of the Plan “Science and Technology Innovation 2025” in Ningbo (No. 2018B10016), and the K. C. Wong Magna Fund in Ningbo University. We thank Prof. He Lin, Hongkai Gu, Prof. Yanan Fu, and Prof. Yu Chen for their supports with the total scattering measurements and PDF analysis.
PY - 2020/3/2
Y1 - 2020/3/2
N2 - Metal–organic framework (MOF) glasses are promising candidates for membrane fabrication due to their significant porosity, the ease of processing, and most notably, the potential to eliminate the grain boundary that is unavoidable for polycrystalline MOF membranes. Herein, we developed a ZIF-62 MOF glass membrane and exploited its intrinsic gas-separation properties. The MOF glass membrane was fabricated by melt-quenching treatment of an in situ solvothermally synthesized polycrystalline ZIF-62 MOF membrane on a porous ceramic alumina support. The molten ZIF-62 phase penetrated into the nanopores of the support and eliminated the formation of intercrystalline defects in the resultant glass membrane. The molecular sieving ability of the MOF membrane is remarkably enhanced via vitrification. The separation factors of the MOF glass membrane for H2/CH4, CO2/N2 and CO2/CH4 mixtures are 50.7, 34.5, and 36.6, respectively, far exceeding the Robeson upper bounds.
AB - Metal–organic framework (MOF) glasses are promising candidates for membrane fabrication due to their significant porosity, the ease of processing, and most notably, the potential to eliminate the grain boundary that is unavoidable for polycrystalline MOF membranes. Herein, we developed a ZIF-62 MOF glass membrane and exploited its intrinsic gas-separation properties. The MOF glass membrane was fabricated by melt-quenching treatment of an in situ solvothermally synthesized polycrystalline ZIF-62 MOF membrane on a porous ceramic alumina support. The molten ZIF-62 phase penetrated into the nanopores of the support and eliminated the formation of intercrystalline defects in the resultant glass membrane. The molecular sieving ability of the MOF membrane is remarkably enhanced via vitrification. The separation factors of the MOF glass membrane for H2/CH4, CO2/N2 and CO2/CH4 mixtures are 50.7, 34.5, and 36.6, respectively, far exceeding the Robeson upper bounds.
KW - gas separation
KW - glasses
KW - membranes
KW - metal–organic frameworks
KW - molecular sieves
UR - http://www.scopus.com/inward/record.url?scp=85078665128&partnerID=8YFLogxK
U2 - 10.1002/ange.201915807
DO - 10.1002/ange.201915807
M3 - Article
C2 - 31893511
AN - SCOPUS:85078665128
VL - 59
SP - 4365
EP - 4369
JO - Angewandte Chemie
JF - Angewandte Chemie
SN - 1433-7851
IS - 11
ER -