Water States Analysis of Anion Exchange Membranes with Terahertz Time-Domain Spectroscopy

Frow, Jordan J. and Periasamy, Arun Prakash and Gupta, Gaurav and Varcoe, John R. and Lin, Hungyen (2022) Water States Analysis of Anion Exchange Membranes with Terahertz Time-Domain Spectroscopy. In: 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) :. International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz . IEEE, NLD. ISBN 9781728194288

Text (Jordan_abstract-V10)
Jordan_abstract_V10.pdf - Accepted Version
Available under License Creative Commons Attribution-NonCommercial.
Download (247kB)

Abstract

Terahertz time-domain spectroscopy (THz-TDS) has been recently demonstrated to resolve water states inside industrially thin fuel cell membranes. In this work, we apply THz-TDS to anion exchange membranes (AEMs) where detailed water information is crucial to their stability and operational performance. By performing independent ionic conductivity measurement on said membranes, we show a good correlation against the extracted conductivities and resolved bulk water of three AEMs produced with different amination time.