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Updated: Jan 11, 2026

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通过对高温燃料电池的合电子吸收组来增强非硫化膜中的质子移位
Yucong Liao1, Rui Wang1, Shengqiu Zhao2
1State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
ACS nano
|November 19, 2025
概括
研究人员开发了一种用于高温质子交换膜燃料电池 (HT-PEMFCs) 的新聚合物膜. 这种膜显著提高了质子导电性和稳定性,在苛刻的条件下提高了燃料电池的性能.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 高温质子交换膜燃料电池 (HT-PEMFCs) 提供了 CO 耐受性和高效的热管理等优势.
- 目前的局限性包括低湿度下的质子导电性差以及高温稳定性不足的聚合物电解质.
研究的目的:
- 为HT-PEMFCs开发一种高性能,非硫化聚合物膜.
- 通过增加原生组的酸度来增强质子导电性和热稳定性.
主要方法:
- 合成了一种非硫化 perfluorosulfonimide-phenylphosphonic 酸 (PFSI-BPA) 膜.
- 纳入了取电子组 (硫,) 来增强原生组酸性.
- 利用现场测量和理论计算来确认属性.
主要成果:
- 该PFSI-BPA膜的质子导电率比40%相对湿度 (RH) 的对照表高3.2倍.
- 在105°C/40%RH下达到2.44W cm-2的峰值功率密度,超过了以前的基准.
- 在低湿度条件下证明改善了水运输和质子导电性.
结论:
- 在实际的HT-PEMFC应用中,PFSI-BPA膜表现出卓越的性能.
- 提取电子的组有效地增强了质子移位和膜稳定性.
- 这项研究为设计下一代燃料电池的先进聚合物电解质提供了宝贵的见解.
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