Hydrophobic Metal–Organic Frameworks

Metal–organic frameworks (MOFs) have diverse potential applications in catalysis, gas storage, separation, and drug delivery because of their nanoscale periodicity, permanent porosity, channel functionalization, and structural diversity. Despite these promising properties, the inherent structural fe...

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Vydáno v:Advanced materials (Weinheim) Ročník 31; číslo 32; s. e1900820 - n/a
Hlavní autoři: Jayaramulu, Kolleboyina, Geyer, Florian, Schneemann, Andreas, Kment, Štěpán, Otyepka, Michal, Zboril, Radek, Vollmer, Doris, Fischer, Roland A.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Germany Wiley Subscription Services, Inc 01.08.2019
Témata:
Aqueous solutions
Catalysis
Chemical composition
contact angles
Drug delivery systems
hydrocarbon separation
Hydrophobicity
Materials science
Metal-organic frameworks
metal–organic frameworks (MOFs)
Moisture
Oil spills
oil–water separation
Organic chemistry
Periodic variations
Porosity
Separation
Wettability
Wetting
hydrocarbon separation
hydrophobicity
contact angles
metal-organic frameworks (MOFs)
oil-water separation
ISSN:0935-9648, 1521-4095, 1521-4095
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Shrnutí:Metal–organic frameworks (MOFs) have diverse potential applications in catalysis, gas storage, separation, and drug delivery because of their nanoscale periodicity, permanent porosity, channel functionalization, and structural diversity. Despite these promising properties, the inherent structural features of even some of the best‐performing MOFs make them moisture‐sensitive and unstable in aqueous media, limiting their practical usefulness. This problem could be overcome by developing stable hydrophobic MOFs whose chemical composition is tuned to ensure that their metal–ligand bonds persist even in the presence of moisture and water. However, the design and fabrication of such hydrophobic MOFs pose a significant challenge. Reported syntheses of hydrophobic MOFs are critically summarized, highlighting issues relating to their design, characterization, and practical use. First, wetting of hydrophobic materials is introduced and the four main strategies for synthesizing hydrophobic MOFs are discussed. Afterward, critical challenges in quantifying the wettability of these hydrophobic porous surfaces and solutions to these challenges are discussed. Finally, the reported uses of hydrophobic MOFs in practical applications such as hydrocarbon storage/separation and their use in separating oil spills from water are summarized. Finally, the state of the art is summarized and promising future developments of hydrophobic MOFs are highlighted. Metal–organic frameworks (MOFs) have diverse potential applications in catalysis, gas storage, separation, and drug delivery. Recent progress in synthetic routes, properties, critical challenges of characterization, and applications of hydrophobic metal–organic frameworks are critically summarized.
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ISSN:0935-9648
1521-4095
1521-4095
DOI:10.1002/adma.201900820