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Related Experiment Video

Updated: Nov 7, 2025

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

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Published on: June 9, 2023

Ion-conductive metal-organic frameworks.

Masaaki Sadakiyo¹, Hiroshi Kitagawa

¹Department of Applied Chemistry, Faculty of Science Division I, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.

Dalton Transactions (Cambridge, England : 2003)

|April 28, 2021

Summary

Metal-organic frameworks (MOFs) are excellent ionic conductors due to their ordered structures. Their design varies based on the specific ion, enabling efficient pathways for protons, lithium, and magnesium ions.

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Area of Science:

Materials Science
Electrochemistry
Nanotechnology

Background:

Metal-organic frameworks (MOFs) possess unique tuneable and ordered microporous structures.
These characteristics make MOFs promising candidates for ionic conduction applications.
The past decade has seen extensive research into MOFs as ionic conductors.

Purpose of the Study:

To summarize the fundamental design principles of highly ion-conductive MOFs.
To review MOFs designed for various ionic carriers, including protons, hydroxide, lithium, sodium, and magnesium ions.
To highlight the suitability of MOF porous structures as efficient ion-conducting pathways.

Main Methods:

Literature review of existing studies on ion-conductive MOFs.
Analysis of MOF structural features relevant to ionic transport.
Categorization of MOF designs based on different ionic carriers (H+, OH-, Li+, Na+, Mg2+).

Main Results:

MOF pore and channel structures are inherently suitable for ion conduction.
Specific design strategies are required for different ionic carriers to optimize conductivity.
Various MOFs demonstrate efficient conduction for a range of ions.

Conclusions:

MOFs represent a significant new class of ionic conductors.
Tailoring MOF structure is key to achieving high ionic conductivity for specific ions.
Further development in MOF design can lead to advanced ion-transport materials.