ダウンロード数: 34
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
acsomega.1c00607.pdf | 3.12 MB | Adobe PDF | 見る/開く |
タイトル: | Impact of the Composition of Alcohol/Water Dispersion on the Proton Transport and Morphology of Cast Perfluorinated Sulfonic Acid Ionomer Thin Films |
著者: | Gao, Xiao Yamamoto, Kentaro https://orcid.org/0000-0002-8739-4246 (unconfirmed) Hirai, Tomoyasu Ohta, Noboru Uchiyama, Tomoki Watanabe, Toshiki https://orcid.org/0000-0003-1798-1987 (unconfirmed) Imai, Hideto Sugawara, Seiho Shinohara, Kazuhiko Uchimoto, Yoshiharu https://orcid.org/0000-0002-1491-2647 (unconfirmed) |
著者名の別形: | 山本, 健太郎 内山, 智貴 渡邊, 稔樹 内本, 喜晴 |
キーワード: | Colloids Fluoropolymers Hydrophilicity Proton conductivity Thin films |
発行日: | Jun-2021 |
出版者: | American Chemical Society (ACS) |
誌名: | ACS Omega |
巻: | 6 |
号: | 22 |
開始ページ: | 14130 |
終了ページ: | 14137 |
抄録: | The dispersion of perfluorinated sulfonic acid ionomers in catalyst inks is an important factor that controls the performance of catalyst layers in membrane electrode assemblies of polymer electrolyte fuel cells. Herein, the effects of water/alcohol compositions on the morphological properties and proton transport are examined by grazing incidence small-angle X-ray scattering, grazing incidence wide-angle X-ray scattering, and electrochemical impedance spectroscopy. The thin films cast by a high water/alcohol ratio Nafion dispersion have high proton conductivity and well-defined hydrophilic/hydrophobic phase separation, which indicates that the proton conductivity and morphology of the Nafion thin films are strongly influenced by the state of dispersion. This finding is expected to further understand the morphology and proton transport properties of Nafion thin films with different water/alcohol ratios, which has implications for the performance of the Pt/Nafion interface. |
著作権等: | Copyright © 2021 The Authors. Published by American Chemical Society This is an open access article published under a Creative Commons Non-Commercial NoDerivative Works Attribution License, which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes. |
URI: | http://hdl.handle.net/2433/274223 |
DOI(出版社版): | 10.1021/acsomega.1c00607 |
PubMed ID: | 34124435 |
出現コレクション: | 学術雑誌掲載論文等 |
このアイテムは次のライセンスが設定されています: クリエイティブ・コモンズ・ライセンス