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Estimation of water contents of polymer electrolytes by 1H NMR spectroscopy
http://hdl.handle.net/10649/00000980
http://hdl.handle.net/10649/0000098010936b3b-08af-44e5-9c95-fdeb223b3602
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ECSTran25-839-2009 (150.4 kB)
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| アイテムタイプ | 会議発表論文 / Conference Paper(1) | |||||
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| 公開日 | 2019-02-28 | |||||
| タイトル | ||||||
| タイトル | Estimation of water contents of polymer electrolytes by 1H NMR spectroscopy | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
| 資源タイプ | conference paper | |||||
| 著者 |
Y. Nosaka, Atsuko
× Y. Nosaka, Atsuko× Nosaka, Yoshio |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Water molecules confined in perfluorinated ionomer membranes which are widely used for polymer electrolyte fuel cells, presented apparently a single 1H NMR peak in hydrated states because of the rapid exchange among the water molecules at the distinct segments of the polymer. The peak shifted to the lower field with decreasing the water content due to the decrease of the fraction of the bulk water molecules which present a peak at higher field. The chemical shifts were found to be well correlated with the peak area. The water peak for MEA (Membrane Electrode Assembly) showed also similar behaviors to the membranes. From the relationship between the chemical shift and the peak area of the confined water peak we demonstrated the potential that the chemical shift could be utilized to estimate the water content in the hydrated membranes and MEA. | |||||
| 書誌情報 |
ECS Transactions 巻 25, 号 1 PART 1, p. 839-845, 発行日 2009 |
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| 出版者 | ||||||
| 出版者 | Electrochemical Society | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1938-5862 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | AM | |||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
| URI | ||||||
| URL | https://doi.org/10.1149/1.3210637 | |||||
