Aqueous‐Phase Synthesis of Mesoporous Zr‐Based MOFs Templated by Amphoteric Surfactants

Aqueous‐Phase Synthesis of Mesoporous Zr‐Based MOFs Templated by Amphoteric Surfactants Zr‐based mesoporous metal–organic frameworks (mesoMOFs) with uniform mesochannels and crystallized microporous framework were constructed in a water‐based system using amphoteric surfactants as templates. Aqueous‐phase synthesis guaranteed the formation of rod‐shaped surfactant micelles. Meanwhile, the carboxylate groups of amphoteric surfactants provided the anchoring to bridge Zr‐oxo clusters and surfactant assemblies. As a result, the directed crystallization of MOFs proceeded around cylindrical micelles and the hierarchical micro‐ and mesostructure was produced. The dimensions of mesopores were easily tailored by changing the alkyl chain length of the applied surfactants. The included surfactant was effectively extracted thanks to the exceptional stability of the obtained Zr‐based mesoMOFs. The almost complete occupation of the mesopore by cytochrome c exemplifies the accessibility of the mesochannels, suggesting the potential applications of the obtained mesoMOFs with bulky molecules. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Angewandte Chemie International Edition Wiley

Aqueous‐Phase Synthesis of Mesoporous Zr‐Based MOFs Templated by Amphoteric Surfactants

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Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
© 2018 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
1433-7851
eISSN
1521-3773
D.O.I.
10.1002/anie.201800619
Publisher site
See Article on Publisher Site

Abstract

Zr‐based mesoporous metal–organic frameworks (mesoMOFs) with uniform mesochannels and crystallized microporous framework were constructed in a water‐based system using amphoteric surfactants as templates. Aqueous‐phase synthesis guaranteed the formation of rod‐shaped surfactant micelles. Meanwhile, the carboxylate groups of amphoteric surfactants provided the anchoring to bridge Zr‐oxo clusters and surfactant assemblies. As a result, the directed crystallization of MOFs proceeded around cylindrical micelles and the hierarchical micro‐ and mesostructure was produced. The dimensions of mesopores were easily tailored by changing the alkyl chain length of the applied surfactants. The included surfactant was effectively extracted thanks to the exceptional stability of the obtained Zr‐based mesoMOFs. The almost complete occupation of the mesopore by cytochrome c exemplifies the accessibility of the mesochannels, suggesting the potential applications of the obtained mesoMOFs with bulky molecules.

Journal

Angewandte Chemie International EditionWiley

Published: Jan 19, 2018

Keywords: ; ; ; ;

References

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