Mixed proton-electron conductivity in a dynamic 3D metal-organic framework
(2025) Chem — p. 102590 (2025)
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Chanteux, Géraldine 
- Abstract
- Electrochemical technologies are at the heart of a sustainable energy future, powering innovations from clean energy storage to next-generation fuel cells. A challenge in this field has been finding materials that can efficiently transport both protons and electrons—key to many energy conversion and storage processes. Enter metal-organic frameworks (MOFs) —highly tunable materials with immense potential but typically limited to either proton or electron conduction. Herein, we disclose a dynamic, breathable 3D MOF that combines both proton and electron conductivity within a single phase. The secret lies in its reversible structural transformation, driven by water interactions and uncoordinated functional groups, which enables seamless dual conduction. This advance not only redefines the boundaries of MOF functionality but also opens the door to entirely new design strategies for materials at the intersection of chemistry, physics, and energy science.
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Citations
Darsi Rambabu, Goossens, T., Bakuru, V. R., Apostol, P., Mairesse, F., Steenhaut, T., Beaujean, P., Mondal, S. K., Guo, X., Zhang, Y., Pal, S., Markowski, R., Lin, X., Xu, P., Chanteux, G., Kachmar, A., Tie, D., Ramackers, A., Frano, V., et al. (2025). Mixed proton-electron conductivity in a dynamic 3D metal-organic framework. Chem, 102590. https://doi.org/10.1016/j.chempr.2025.102590 (Original work published 2025)