Issue 35, 2024

Selective Li ion transport via interpenetrated crystal growth on ZIF-8 seeded nanocomposite membranes

Abstract

ZIF-8 based poly(vinylidene) difluoride (PVDF) nanocomposite mixed matrix membranes (MMMs) were successfully prepared via post-synthetic seeded growth of the ZIF-8. PVDF and 5s-MMMs, before ZIF-8 crystallization, exhibit no diffusional selectivity towards Li ions, with intrinsic hydrophobicity and ion conductivity on the order of 10−12 S cm−1. On the other hand, crystallized 5c-MMMs with greater hydrophilicity, exhibit diffusional selectivity favoring Li over Na and K ions, with ion conductivities on the order of 10−8 S cm−1, owing to the densely interpenetrated morphology of ZIF-8 in and on the membrane, controlling mass transport at selective crystal facets.

Graphical abstract: Selective Li ion transport via interpenetrated crystal growth on ZIF-8 seeded nanocomposite membranes

Supplementary files

Article information

Article type
Communication
Submitted
05 Apr 2024
Accepted
09 Jul 2024
First published
10 Jul 2024
This article is Open Access
Creative Commons BY-NC license

J. Mater. Chem. C, 2024,12, 13816-13821

Selective Li ion transport via interpenetrated crystal growth on ZIF-8 seeded nanocomposite membranes

B. Clayville, J. Y. Choi, C. Wagner, W. Warren and J. Park, J. Mater. Chem. C, 2024, 12, 13816 DOI: 10.1039/D4TC01399A

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