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使用硫化纳米钻石改进PFSA膜

Alexandr V Shvidchenko1, Alexei S Odinokov2, Oleg N Primachenko3

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将硫纳米钻石添加到Aquivion®类型的 perfluorosulfonic 酸膜中,可以增强质子导电性并保持机械完整性,从而提高燃料电池的性能.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 电化学 电化学 电化学
  • 纳米技术纳米技术

背景情况:

  • 高硫酸膜对于燃料电池至关重要.
  • 提高质子导电性是提高燃料电池效率的关键.
  • 纳米填充剂提供了一种修改膜性质的途径.

研究的目的:

  • 为了研究硫化纳米钻石对Aquivion®类型膜的影响.
  • 为了提高这些膜的质子导电性和机械性能.
  • 评估这些修改后的膜是否适用于燃料电池.

主要方法:

  • 用硫酸组对纳米钻石进行化学修饰.
  • 在不同度 (0.5-2重量%) 的Aquivion®类型膜中加入改性纳米钻石.
  • 使用小角度中子散射评估质子导电性,机械性质和结构完整性.

主要成果:

  • 加入硫化纳米钻石增加了质子导电性.
  • 在0.5-2重量%的纳米钻石负载下观察到最佳导电性.
  • 膜保留了良好的机械性能和结构完整性.
  • 微角中子散射证实了导电通道的保存.

结论:

  • 硫化纳米钻石有效地提高了Aquivion®类型膜中的质子导电性.
  • 这些修改后的膜在燃料电池应用中表现出有前途的性能.
  • 该方法为开发先进燃料电池组件提供了一个可行的策略.