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获得基托/PVA和TiO₂的电膜作为固体聚合物电解质,在离子交换膜中具有潜在的应用

Elio Enrique Ruiz Gómez¹, Jose Herminsul Mina Hernandez²

¹Grupo de Investigación en Estudios Aeroespaciales-GIEA, Escuela Militar de Aviación Marco Fidel Suárez (EMAVI)-Fuerza Aeroespacial Colombiana, Carrera 8 No. 58-67, Cali 760011, Colombia.

|November 24, 2023

概括

这项研究开发了一种含有二氧化纳米粒子的奇托桑/聚乙烯醇混合膜,用于固体聚合物电解质. 由此产生的纳米复合材料膜显示可调节的吸收湿度和改善的热稳定性,增强了电化学应用的潜力.

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:

固体聚合物电解质对于电化学设备,如电池和燃料电池至关重要.
素 (CS) 和聚乙烯醇 (PVA) 是生物相容的聚合物,具有电解质应用的潜力.
纳米颗粒的结合可以修改聚合物特性以提高性能.

研究的目的:

为了合成和描述一种新的固体聚合物电解质膜.
调查二氧化 (TiO2) 纳米颗粒结合对CS/PVA混合物的物理化学性能的影响.
评估这些纳米复合材料膜对于电化学能量的产生潜力.

主要方法:

用于制造CS/PVA混合膜的电技术.
二氧化 (TiO2) 纳米颗粒在不同度 (100050,000 ppm) 中结合在一起.
使用SEM,TGA,DSC和复杂阻抗光谱分析的物理化学性质.

主要成果:

SEM证实纳米纤维直径约为100纳米.
TiO2的加入改变了水分的吸收,导致高度的疏水行为.
观察到更好的热稳定性和玻璃过渡温度 (Tg) 的变化,增强室温离子导电潜力.
激活能量在1000ppm的TiO2兴奋剂下降.

结论:

与TiO2纳米颗粒混合的CS/PVA膜对固体聚合物电解质具有有前途的性能.
可调节的吸收湿度和增强的热特性是关键优势.
需要进一步的研究来验证电化学电池的能效.

关键词:

二元组合是指二元组合.电力旋转是指电力旋转.燃料电池是指燃料电池的使用方式.固体聚合物电解质的电解质.氧化是一种氧化.

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