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双层异质离子交换膜与聚氨改性同质层:制备和电子传输特性

Natalia Loza¹, Irina Falina¹, Natalia Kutenko¹

¹Physical Chemistry Department, Faculty of Chemistry and High Technologies, Kuban State University, 350040 Krasnodar, Russia.

|October 27, 2023

概括

带有聚氨的新双层膜增强了离子运输特性. 这种经过修改的阴离子交换膜显示透性和导电性降低,在各种盐溶液中具有取决于方向的性能.

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:

不同质的阴离子交换膜对于各种电化学应用至关重要.
修改膜表面可以改变它们的传输特性和选择性.
聚氨是一种导电聚合物,具有膜功能化的潜力.

研究的目的:

准备和描述一种新型的双层膜,其中包含同质的阴离子交换层和聚氨.
研究这些修改对膜结构,导电性,扩散透性,选择性和电流电压特性的影响.
为了评估膜在不同的电解质溶液 (HCl,NaCl,CaCl2) 中的性能.

主要方法:

氨酸的氧化聚合以将聚氨酸插入异质交膜上的同质的阴离子交换层.
膜性质的表征,包括结构,导电性,扩散透性,选择性和电流-电压曲线.
在HCl,NaCl和CaCl2溶液中测试膜性能.

主要成果:

同质的阴离子交换层对初始异质膜的传输特性的影响最小.
聚烯合成降低了宏孔体积,导电性和扩散透性.
双层膜在CaCl2溶液中表现出明显减少的对子离子输送数.
基于膜方向观察了不对称的扩散透性和电流-电压曲线.

结论:

与原始异质膜相比,准备的双层膜显示了改变的运输特性.
聚氨酸间隙有效地改变了膜结构和传输特性,降低了透性和导电性.
观察到的不对称性表明了方向离子运输应用的潜力.

关键词:

两个层的膜膜.阴离子交换膜是什么?导电性的导电性.当前电压曲线的曲线扩散的透性扩散的透性修改的意思是改变的意思.聚氨酸氨酸是一种聚氨酸.选择性的选择性结构结构结构结构运输号码运输号码

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