@inproceedings{1ec08eb714724348ad1db557436f31b8,
title = "Measurement of hydrogen-gas solubility and diffusivity in polymer electrolyte membrane by NMR method",
abstract = "Polymer electrolyte membrane (PEM) used for fuel cells and water electrolyzers is permeable to hydrogen gas, and the permeation causes to decrease the performance as electrochemical system. So, it is necessary to figure out the mechanism of hydrogen gas permeation and to develop the PEM that has lower gas permeability. In this study, we developed a new measurement system for hydrogen-gas solubility and diffusivity in PEM based on NMR method, which enables us to derive the solubility and diffusivity without assuming theoretical dissolution model. We apply the system to the dissolved hydrogen-gas in dry Nafion{\textregistered}117. The solubility obtained is proportional to ambient pressure and 2.9×10-5 mol/cm3@0.7MPa. The diffusivity is 3×10-10 m2/s. These values are discussed with comparing the values measured in conventional method.",
author = "Ryosuke Nagahisa and Daiki Kuriya and Kuniyasu Ogawa and Yasuyuki Takata and Kohei Ito",
year = "2011",
doi = "10.1149/1.3635673",
language = "English",
isbn = "9781607682547",
series = "ECS Transactions",
publisher = "Electrochemical Society Inc.",
number = "1",
pages = "1423--1430",
booktitle = "Polymer Electrolyte Fuel Cells 11",
edition = "1",
note = "11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting ; Conference date: 09-10-2011 Through 14-10-2011",
}