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Xiaozhen Yang¹, Lin Huang¹, Qiang Deng¹

¹The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China.

|November 9, 2024

概括

功能化的细菌纤维素 (BC) 膜显示出对质子交换膜燃料电池 (PEMFC) 的改善水稳定性和质子导电性. 这种环保材料为可生物降解的电子产品和便携式电源提供了可持续的替代品.

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
聚合物科学聚合物科学

背景情况:

细菌纤维素 (BC) 是一种可再生,生物相容的聚合物,有可能用于质子交换膜 (PEM) 应用.
目前的BC膜在质子交换膜燃料电池 (PEMFCs) 中受水稳定性差和质子导电性低的影响.

研究的目的:

为了提高PEM应用的细菌纤维素的性能.
为燃料电池开发环保,生物基的质子交换膜.

主要方法:

使用3-aminopropyltriethoxysilane (APTES) 通过溶剂造方法实现BC的功能化.
水的稳定性 (接触角度) 和质子导电性的表征.
在PEMFC中测试修改膜的性能.

主要成果:

经过修改的BC膜显著提高了水的稳定性,接触角度从54.9°增加到103.3°.
最佳的BC-APTES比率产生了62.2mS/cm的质子导电性.
膜在PEMFC中实现了4.85mW/cm2的发电性能.

结论:

使用APTES的功能化BC为PEMFC应用提供了一个有前途的生物基材料.
这些膜是一种低成本,环保的替代传统离子体.
潜在的应用包括可生物降解的电子产品和便携式电源.

关键词:

这就是PEMEM的意义.性质子质子载体性质子质载体细菌纤维素的细菌纤维素.燃料电池是指燃料电池的使用方式.完全基于生物的膜膜.质子导电性的质子导电性.

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