Issue 11, 2022

Metal–organic framework (MOF) facilitated highly stretchable and fatigue-resistant ionogels for recyclable sensors

Abstract

Ionogel-based flexible sensors are widely applied in wearable biomedical devices and soft robots. However, the abandoned ionic sensors are rapidly turning into e-waste. Here, we harness the porosity and the coordination of metal sites of metal–organic frameworks (MOFs) to develop physically crosslinked ionogels, which are composed of polymer chains that coordinate with the MOF metal sites. The covalent crosslinking of the host material transformed into reversible bond interactions that significantly enhance the mechanical properties of the MOF-ionogels. The obtained ionogels can endure an 11 000% stretch and exhibit Young's modulus and toughness of 58 MPa and 25 MJ m−3, respectively. In addition, the fracture energy is as high as 125 kJ m−2, outperforming most reported ionogels. Furthermore, the UiO-66-ionogels are fully recyclable and both the mechanical and electrical properties can be restored. The results of this work provide a new vision for the development of future “green” sensors.

Graphical abstract: Metal–organic framework (MOF) facilitated highly stretchable and fatigue-resistant ionogels for recyclable sensors

Supplementary files

Article information

Article type
Communication
Submitted
13 Maw 2022
Accepted
02 Ndz 2022
First published
05 Ndz 2022

Mater. Horiz., 2022,9, 2881-2892

Metal–organic framework (MOF) facilitated highly stretchable and fatigue-resistant ionogels for recyclable sensors

Q. Xia, W. Li, X. Zou, S. Zheng, Z. Liu, L. Li and F. Yan, Mater. Horiz., 2022, 9, 2881 DOI: 10.1039/D2MH00880G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements