Journal
CHEMICAL COMMUNICATIONS
Volume 58, Issue 35, Pages 5355-5358Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc01286c
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Funding
- Joint Center for Energy Storage Research (JCESR), an Energy Innovation Hub - U.S. Department of Energy, Office of Science, Basic Energy Sciences
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Two novel MOFs, UiO-68-EO and UiO-68-2EO, were obtained by varying the degree of ethylene oxide (EO) functionalization in the zirconium MOF UiO-68. Loading LiTFSI in their pores enables these MOFs to exhibit solvent-free ionic conductivity. The introduction of EO chains provides a pathway for lithium ion migration between the coordinated sites, resulting in high ionic conductivity at 90 degrees C for UiO-68-EO/LiTFSI and UiO-68-2EO/LiTFSI.
Varying the degree of ethylene oxide (EO) functionalization of the zirconium MOF UiO-68 affords two novel MOFs; UiO-68-EO and UiO-68-2EO exhibit solvent-free ionic conductivity upon loading LiTFSI in their pores. Incorporating EO chains provides a pathway for lithium ion migration between the coordinated sites and results in an ionic conductivity of 3.8 x 10(-7) S cm(-1) and 3.9 x 10(-4) S cm(-1) at 90 degrees C for UiO-68-EO/LiTFSI and UiO-68-2EO/LiTFSI respectively.
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