Electrically Conductive Metal–Organic Frameworks
Author(s)
Xie, Lilia S.; Skorupskii, Grigorii; Dinca, Mircea
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Metal–organic frameworks (MOFs) are intrinsically porous extended solids formed by coordination bonding between organic ligands and metal ions or clusters. High electrical conductivity is rare in MOFs, yet it allows for diverse applications in electrocatalysis, charge storage, and chemiresistive sensing, among others. In this Review, we discuss the efforts undertaken so far to achieve efficient charge transport in MOFs. We focus on four common strategies that have been harnessed toward high conductivities. In the “through-bond” approach, continuous chains of coordination bonds between the metal centers and ligands’ functional groups create charge transport pathways. In the “extended conjugation” approach, the metals and entire ligands form large delocalized systems. The “through-space” approach harnesses the π–π stacking interactions between organic moieties. The “guest-promoted” approach utilizes the inherent porosity of MOFs and host–guest interactions. Studies utilizing less defined transport pathways are also evaluated. For each approach, we give a systematic overview of the structures and transport properties of relevant materials. We consider the benefits and limitations of strategies developed thus far and provide an overview of outstanding challenges in conductive MOFs.
Date issued
2020-04Department
Massachusetts Institute of Technology. Department of ChemistryJournal
Chemical Reviews
Publisher
American Chemical Society (ACS)
Citation
Xie, Lilia S. et al. "Electrically Conductive Metal–Organic Frameworks." Chemical Reviews 120, 16 (April 2020): 8536–8580. © 2020 American Chemical Society
Version: Final published version
ISSN
0009-2665
1520-6890