Filippov Anatoly, Petrova Daria, Falina Irina, Kononenko Natalia, Ivanov Evgenii, Lvov Yuri, Vinokurov Vladimir
Laboratory of functionalized aluminosilicate materials, Department of Physical and Colloid Chemistry, Gubkin University, Leninsky prospect 65-1, Moscow 119991, Russia.
Department of Higher Mathematics, Gubkin University, Leninsky prospect 65-1, Moscow 119991, Russia.
Polymers (Basel). 2018 Mar 25;10(4):366. doi: 10.3390/polym10040366.
Three types of bi-layer hybrid nanocomposites on the base of perfluorinated cation-exchange membrane MF-4SC (Russian analogue of Nafion-117) were synthesized and characterized. It was found that two membranes possess the noticeable asymmetry of the current⁻voltage curve (CVC) under changing their orientation towards the applied electric field, despite the absence of asymmetry of diffusion permeability. These phenomena were explained in the frame of the "fine-porous model" expanded for bi-layer membranes. A special procedure to calculate the real values of the diffusion layers thickness and the limiting current density was proposed. Due to asymmetry effects of the current voltage curves of bi-layer hybrid membranes on the base of MF-4SC, halloysite nanotubes and platinum nanoparticles, it is prospective to assemble membrane switches (membrane relays or diodes) with predictable transport properties, founded upon the theory developed here.
合成并表征了基于全氟阳离子交换膜MF-4SC（Nafion-117的俄罗斯类似物）的三种双层混合纳米复合材料。研究发现，尽管扩散渗透率不存在不对称性，但有两种膜在改变其相对于外加电场的取向时，电流-电压曲线（CVC）呈现出明显的不对称性。这些现象在为双层膜扩展的“细孔模型”框架内得到了解释。提出了一种计算扩散层厚度和极限电流密度实际值的特殊方法。基于MF-4SC、埃洛石纳米管和铂纳米颗粒的双层混合膜的电流电压曲线的不对称效应，有望在此处发展的理论基础上组装具有可预测传输特性的膜开关（膜继电器或二极管）。
