Issue 6, 2022

Magnetic bistable organic ionic plastic crystal with room temperature ion conductivity comparable to NASICON and superionic conduction in a broad temperature window

Abstract

Organic ion plastic crystals (OIPCs) show promising applications in various all solid-state electrochemical energy storage devices. In this regard, superionic conducting OIPCs with a broad temperature window are highly in demand. Herein, we report an OIPC, [DEIm][Ni(mnt)2] (1; DEIm+ = 1,3-diethyl-1H-imidazolium and mnt2− = maleonitriledithiolate), showing crystal–crystal and crystal–plastic crystal transformations prior to melting. 1 exhibits magnetic bistability and negative thermal expansion, which are coupled with crystal–crystal transformation, the recorded room temperature ionic conductivity (σ) at the 10−4 S cm−1 level for the as-prepared crystals, comparable to the room temperature fast ion conductor NASICON (Na3Zr2Si2PO12), and the superionic conduction beyond 10−1 S cm−1 with a broad temperature window (σ = 0.19–0.94 S cm−1 in 318–368 K for the annealed crystals and σ ≈ 1.77 S cm−1 in 408–453 K in the plastic crystal phase). These results will allow for expanding the scope of OIPCs, providing an ideal platform for seeking multifunctional superionic conducting OIPCs.

Graphical abstract: Magnetic bistable organic ionic plastic crystal with room temperature ion conductivity comparable to NASICON and superionic conduction in a broad temperature window

Supplementary files

Article information

Article type
Research Article
Submitted
01 Dec 2021
Accepted
05 Feb 2022
First published
07 Feb 2022

Mater. Chem. Front., 2022,6, 793-801

Magnetic bistable organic ionic plastic crystal with room temperature ion conductivity comparable to NASICON and superionic conduction in a broad temperature window

Y. Qian, J. Zhang, Y. Wang, W. Yao, D. Shao and X. Ren, Mater. Chem. Front., 2022, 6, 793 DOI: 10.1039/D1QM01573G

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