Issue 1, 2021

Enhanced proton conductivity in a flexible metal–organic framework promoted by single-crystal-to-single-crystal transformation

Abstract

MFM-722(Pb)-DMA undergoes a single-crystal-to-single-crystal (SCSC) transformation to give MFM-722(Pb)-H2O via ligand substitution upon exposure to water vapour. In situ single crystal impedance spectroscopy reveals an increase in proton conductivity due to this structural transition, with MFM-722(Pb)-H2O showing a proton conductivity of 6.61 × 10−4 S cm−1 at 50 °C and 98% RH. The low activation energy (Ea = 0.21 eV) indicates that the proton conduction follows a Grotthuss mechanism.

Graphical abstract: Enhanced proton conductivity in a flexible metal–organic framework promoted by single-crystal-to-single-crystal transformation

Supplementary files

Article information

Article type
Communication
Submitted
02 ago. 2020
Accepted
17 nov. 2020
First published
17 nov. 2020
This article is Open Access
Creative Commons BY license

Chem. Commun., 2021,57, 65-68

Enhanced proton conductivity in a flexible metal–organic framework promoted by single-crystal-to-single-crystal transformation

X. Chen, Z. Zhang, J. Chen, S. Sapchenko, X. Han, I. da-Silva, M. Li, I. J. Vitorica-Yrezabal, G. Whitehead, C. C. Tang, K. Awaga, S. Yang and M. Schröder, Chem. Commun., 2021, 57, 65 DOI: 10.1039/D0CC05270A

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