Single-Ion Li[superscript +], Na[superscript +], and Mg[superscript 2+] Solid Electrolytes Supported by a Mesoporous Anionic Cu–Azolate Metal–Organic Framework
Author(s)
Park, Sarah Sunah
Tulchinsky, Yuri
Dinca, Mircea
Date Issued
September 2017
Journal
Journal of the American Chemical Society
Publisher
American Chemical Society
Citation
Park, Sarah S., et al. “Single-Ion Li[superscript +], Na[superscript +], and Mg[superscript 2+] Solid Electrolytes Supported by a Mesoporous Anionic Cu–Azolate Metal–Organic Framework.” Journal of the American Chemical Society, vol. 139, no. 38, Sept. 2017, pp. 13260–63.
Version
Author's final manuscript
Abstract
A novel Cu(II)–azolate metal–organic framework (MOF) with tubular pores undergoes a reversible single crystal to single crystal transition between neutral and anionic phases upon reaction with stoichiometric amounts of halide or pseudohalide salts. The stoichiometric transformation between the two phases allows loading of record amounts of charge-balancing Li[superscript +], Na[superscript +], and Mg[superscript 2+] ions for MOFs. Whereas the halide/pseudohalide anions are bound to the metal centers and thus stationary, the cations move freely within the one-dimensional pores, giving rise to single-ion solid electrolytes. The respective Li[superscript +]-, Na[superscript +]-, and Mg[superscript 2+]-loaded materials exhibit high ionic conductivity values of 4.4 × 10[superscript –5], 1.8 × 10[superscript –5], and 8.8 × 10[superscript –7] S/cm. With addition of LiBF[subscript 4], the Li[superscript +] conductivity improves to 4.8 × 10[superscript –4] S/cm. These are the highest values yet observed for MOF solid electrolytes.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1021/jacs.7b06197
