Proton-conduction photomodulation in spiropyran-functionalized MOFs with large on-off ratio

Kanj AB, Chandresh A, Gerwien A, Grosjean S, Braese S, Wang Y, Dube H, Heinke L (2020)

Publication Type: Journal article

Publication year: 2020

Journal

Chemical Science Royal Society of Chemistry

Book Volume: 11

Pages Range: 1404-1410

Journal Issue: 5

DOI: 10.1039/c9sc04926f

Abstract

Proton conduction in nanopores is important for applications in fuel cells, chemical sensors and information processing devices inspired by nature. Here, we present a nanoporous material, a metal-organic framework (MOF) thin film, allowing photomodulation of the aqueous and alcoholic proton conduction of the guests by almost two orders of magnitude. The MOF film possesses spiropyran groups which undergo reversible UV-light induced isomerization to the merocyanine form, a highly polar, zwitterionic molecule, where the strong binding of the guests to the merocyanine isomer efficiently suppresses the proton conduction. Such materials with photomodulated ionic conduction contribute to the development of advanced, remote-controllable chemical sensors and to switchable devices interfacing with biological systems.

Authors with CRIS profile

Henry Dube

Involved external institutions

Ludwig-Maximilians-Universität (LMU) DE Germany (DE) Karlsruhe Institute of Technology (KIT) DE Germany (DE)

How to cite

APA:

Kanj, A.B., Chandresh, A., Gerwien, A., Grosjean, S., Braese, S., Wang, Y.,... Heinke, L. (2020). Proton-conduction photomodulation in spiropyran-functionalized MOFs with large on-off ratio. Chemical Science, 11(5), 1404-1410. https://doi.org/10.1039/c9sc04926f

MLA:

Kanj, Anemar Bruno, et al. "Proton-conduction photomodulation in spiropyran-functionalized MOFs with large on-off ratio." Chemical Science 11.5 (2020): 1404-1410.

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