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Orthogonal Synthesis of Highly Porous Zr-MOFs Assembled from Simple Building Blocks for Oxygen Storage

preprint
submitted on 13.08.2019 and posted on 13.08.2019 by Jiafei Lyu, Xuan Zhang, Zhijie Chen, Ryther Anderson, Xingjie Wang, Megan C. Wasson, Peng Bai, Xianghai Guo, Timur Islamoglu, Diego Gómez-Gualdrón, Omar K. Farha
The last decade has witnessed significant advances in the scale-up synthesis of metal–organic frameworks (MOFs) using commercially available and affordable organic linkers. However, the synthesis of MOFs using elongated and/or multitopic linkers to access MOFs with large pore volume and/or various topologies can often be challenging due to multi-step organic syntheses involved for linker preparation.In this report, a orthogonal MOF synthesis strategy is developed by utilizing the coordination and covalent bonds formation in one-pot where monoacid-based ligands reacted to form ditopic ligands which then assembled into a 3-D MOF with Zr6 clusters. Chemical stability of the resulting materials was significantly enhanced through converting the imine bond into robust linkage via cycloaddition with phenylacetylene. Oxygen storage capacities of the MOFs were measured, and enhanced volumetric O2 uptake was observed for the stabilized MOF, NU-401-Q.

History

Email Address of Submitting Author

omarkfarha@gmail.com

Institution

Northwestern University

Country

USA

ORCID For Submitting Author

0000-0002-9904-9845

Declaration of Conflict of Interest

no conflict of interest

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