Measurement of hydrogen-gas solubility and diffusivity in polymer electrolyte membrane by NMR method

Ryosuke Nagahisa, Daiki Kuriya, Kuniyasu Ogawa, Yasuyuki Takata, Kohei Ito

研究成果: 著書/レポートタイプへの貢献会議での発言

1 引用 (Scopus)

抄録

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®117. The solubility obtained is proportional to ambient pressure and 2.9×10 -5 mol/cm 3@0.7MPa. The diffusivity is 3×10 -10 m 2/s. These values are discussed with comparing the values measured in conventional method.

元の言語英語
ホスト出版物のタイトルPolymer Electrolyte Fuel Cells 11
ページ1423-1430
ページ数8
41
エディション1
DOI
出版物ステータス出版済み - 12 1 2011
イベント11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting - Boston, MA, 米国
継続期間: 10 9 201110 14 2011

その他

その他11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting
米国
Boston, MA
期間10/9/1110/14/11

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Solubility
Electrolytes
Nuclear magnetic resonance
Membranes
Hydrogen
Polymers
Gases
Permeation
Gas permeability
Fuel cells
Dissolution
Water

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Nagahisa, R., Kuriya, D., Ogawa, K., Takata, Y., & Ito, K. (2011). Measurement of hydrogen-gas solubility and diffusivity in polymer electrolyte membrane by NMR method. : Polymer Electrolyte Fuel Cells 11 (1 版, 巻 41, pp. 1423-1430) https://doi.org/10.1149/1.3635673

Measurement of hydrogen-gas solubility and diffusivity in polymer electrolyte membrane by NMR method. / Nagahisa, Ryosuke; Kuriya, Daiki; Ogawa, Kuniyasu; Takata, Yasuyuki; Ito, Kohei.

Polymer Electrolyte Fuel Cells 11. 巻 41 1. 編 2011. p. 1423-1430.

研究成果: 著書/レポートタイプへの貢献会議での発言

Nagahisa, R, Kuriya, D, Ogawa, K, Takata, Y & Ito, K 2011, Measurement of hydrogen-gas solubility and diffusivity in polymer electrolyte membrane by NMR method. : Polymer Electrolyte Fuel Cells 11. 1 Edn, 巻. 41, pp. 1423-1430, 11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting, Boston, MA, 米国, 10/9/11. https://doi.org/10.1149/1.3635673
Nagahisa R, Kuriya D, Ogawa K, Takata Y, Ito K. Measurement of hydrogen-gas solubility and diffusivity in polymer electrolyte membrane by NMR method. : Polymer Electrolyte Fuel Cells 11. 1 版 巻 41. 2011. p. 1423-1430 https://doi.org/10.1149/1.3635673
Nagahisa, Ryosuke ; Kuriya, Daiki ; Ogawa, Kuniyasu ; Takata, Yasuyuki ; Ito, Kohei. / Measurement of hydrogen-gas solubility and diffusivity in polymer electrolyte membrane by NMR method. Polymer Electrolyte Fuel Cells 11. 巻 41 1. 版 2011. pp. 1423-1430
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