Measuring Proton Conductivity in MOF-Based Mixed Matrix Membranes by Electrochemical Impedance Spectroscopy.

Authors

Ermias Mideksa, Edgar Anies, Vanessa Pimenta, Christian Serre

Published in

Journal of visualized experiments : JoVE. Issue 232. Jun 16, 2026. Epub Jun 16, 2026.

Abstract

This protocol describes a reproducible method to measure the in-plane proton conductivity of metal-organic framework (MOF)/polymer mixed-matrix membranes (MMMs) through electrochemical impedance spectroscopy (EIS) under controlled temperature and humidity conditions. The MMMs were fabricated by solution casting method using the non-fluorinated, water-processable polymer, poly (vinyl alcohol) (PVA) and the proton-conducting MOF MIP-207-SO3H. The synthesis of MIP-207-SO3H is detailed, followed by membrane fabrication, assembly of in-plane conductivity measurement cells, and acquisition of membrane resistance through EIS. This enables accurate acquisition and determination of membrane resistance, determination of proton conductivity, and activation energy. The representative results demonstrate that MIP-207-SO3H-containing membranes exhibit enhanced proton conductivity under the test conditions compared to the membrane without MOF incorporation.

PMID:
42406831
Bibliographic data and abstract were imported from PubMed on 07 Jul 2026.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.