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Graft-type polymer electrolyte membranes based on poly(ether ether ketone)/nanosilica hybrid films for fuel cell applications
https://repo.qst.go.jp/records/47750
https://repo.qst.go.jp/records/47750a3a1d9af-9f8d-4f6b-9f48-301ee65667c8
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-04-20 | |||||
| タイトル | ||||||
| タイトル | Graft-type polymer electrolyte membranes based on poly(ether ether ketone)/nanosilica hybrid films for fuel cell applications | |||||
| 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_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Hamada, Takashi
× Hamada, Takashi× Fukasawa, Hideyuki× Hasegawa, Shin× Miyashita, Atsumi× Maekawa, Yasunari× 長谷川 伸× 宮下 敦巳× 前川 康成 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The effect of nanosilica addition on the ionic conductivity, water uptake, and mechanical properties of poly(styrenesulfonic acid)-grafted poly(ether ether ketone) polymer electrolyte membranes (PEEK-PEMs) were investigated using silica-containing PEEK-PEMs (PEM-Si1, -Si3, and -Si5) prepared by radiation-induced graft polymerization to nanosilica (1, 3, and 5 wt%)-dispersed PEEK films (PEEK-Si1, -Si3, and -Si5). PEEK-Si3 and -Si5 exhibited 10%-50% higher grafting degrees (GDs) compared with those of a silica-free PEEK film. PEM-Si3 and -Si5 showed similar and slightly higher water uptakes in the lower- and higher-relative-humidity (RH) ranges compared with that of the silica-free PEMs. Under the fully humidified condition at 80 °C, PEM-Si3 exhibited the highest tensile strength (TS) (16.4 MPa), which is 1.27 and 1.64 times greater than those of the silica-free PEM and Nafion 212. The membrane electrode assembly (MEA) prepared from PEM-Si3 with an IEC of 3.30 mmol/g showed a maximum power density of 612 mW/cm2 under 30% RH, which was 7% higher than that of the silica-free PEM-based MEA. On the basis of the aforementioned results, we concluded that (1) nanosilica was introduced into both hydrophilic (ion channel) and hydrophobic (matrix PEEK) phases in the PEMs; (2) nanosilica in the hydrophilic phase exhibits greater water absorption tendency but not greater water retention character, under high- and low-RH conditions, respectively; and (3) nanosilica in the hydrophobic phase increases the mechanical properties of silica-containing PEMs. | |||||
| 書誌情報 |
International Journal of Hydrogen Energy 巻 41, 号 41, p. 18621-18630, 発行日 2016-09 |
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| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.ijhydene.2016.08.039 | |||||
