アニオン交換膜のためのN-スピロサイクリック四次アンモニアムイオネ
Thanh Huong Pham1, Joel S Olsson1, Patric Jannasch1
1Polymer & Materials Chemistry, Department of Chemistry, Lund University , P.O. Box 124, SE-221 00 Lund, Sweden.
Journal of the American Chemical Society
|February 14, 2017
まとめ
新しいスパイロイオネンは,アニオン交換膜 (AEM) に優れたアルカリ性安定性を提供します. これらの高度なポリマーは 厳しい環境下でも優れた性能を示し 耐久性の高い電気化学的応用への道を開いています
科学分野:
- 材料化学
- ポリマー科学
- 電気化学
背景:
- アニオン交換膜 (AEM) のための高アルカリ性安定性および伝導性を備えたカチオン性ポリマーの開発は,重要な材料化学の課題です.
- 既存のAEMは,アルカリ性の高い環境で分解され,長期的な性能が制限されます.
研究 の 目的:
- 新しいN-スピロサイクリック四次性アンモニアイオネン (スピロイオネン) を合成し,特徴づけること.
- これらの新しいポリマーのアルカリ的安定性,熱特性,および潜在的AEMアプリケーションの導電性を評価する.
主な方法:
- 高分子量,フィルム形成スピロイオネンの合成
- 1M KOD/D2Oで1800時間以上,アルカリ性安定性を評価する.
- アニオン交換膜 (AEM) の製造と試験は,ポリベンジミダゾールとイオンクロスリンク混合物を使用します.
主要な成果:
- 熱とアルカリの安定性を有するスピロイオネを合成し, 厳しいアルカリ条件に長時間曝露した後に分解しない.
- スピロイオネンは120°Cでも適度な安定性を示した.
- スピロイオネ混合物を基にしたAEMは,90 °Cで0.12 S cm−1までの水酸化導電性を達成した.
結論:
- スピロイオネンは,高度にアルカリの安定性のあるアニオン交換ポリマーの一種である.
- これらの材料は,さまざまな電気化学アプリケーションのための堅牢で高性能なAEMの開発に重要な可能性を示しています.
- 耐久性の高い材料を 要求する化学環境の設計に 新たな道を開きます
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