Ethylene oxide functionalization enhances the ionic conductivity of a MOF

Sorout Shalini; Adam J Matzger

doi:10.1039/d2cc01286c

Ethylene oxide functionalization enhances the ionic conductivity of a MOF

Chem Commun (Camb). 2022 Apr 28;58(35):5355-5358. doi: 10.1039/d2cc01286c.

Authors

Sorout Shalini¹, Adam J Matzger^{1

2}

Affiliations

¹ Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, MI 48109, USA. matzger@umich.edu.
² Department of Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI 48019, USA.

PMID: 35363242
DOI: 10.1039/d2cc01286c

Abstract

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 × 10^-7 S cm^-1 and 3.9 × 10^-4 S cm^-1 at 90 °C for UiO-68-EO/LiTFSI and UiO-68-2EO/LiTFSI respectively.