Ion‐Pair Interactions in Polyphenylene‐Based Quaternized Membranes Designed for Phosphoric Acid‐Doped Proton Exchange Membranes for High‐Temperature Fuel Cells

• Published in: Advanced science p. e09467
• Main Authors: Guo, Lin, Miyatake, Kenji, Mahmoud, Ahmed Mohamed Ahmed, Liu, Fanghua, Xian, Fang, Yadav, Vikrant, Hao, Xiaofeng, Wang, Shuanjin, Meng, Yuezhong
• Format: Journal Article
• Language: English
• Published: Germany 03.07.2025
• Subjects: polyphenylene; proton exchange membranes; ion‐pair interaction; high‐temperature fuel cells; phosphoric acid doping

Phosphoric acid (PA)‐doped proton exchange membranes (PEMs) face significant challenges owing to the loss of PA, particularly under high humidity conditions. Ion‐pair interactions between PA and quaternary ammonium (QA) groups can effectively mitigate PA loss. Herein, polyphenylene‐based quaternized...