Spatially and Temporally Resolved Measurement of Water Distribution in Nafion Using NMR Imaging
Abstract
The hydration conditions of the membrane can vary widely over short timescales during the operation of a PEMFC. To better understand the factors limiting water transport through the PEM membrane exposed to different boundary conditions we implemented a 1D NMR imaging method using a surface probe. This methodology offers a high temporal resolution, allowing the detailed monitoring of fast transient phenomena.