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首页> 外文期刊>Journal of Applied Polymer Science >Poly(vinyl alcohol) modified by KE reactive dyes as a novel proton-exchange membrane for potential fuel-cell applications
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Poly(vinyl alcohol) modified by KE reactive dyes as a novel proton-exchange membrane for potential fuel-cell applications

机译：由KE反应染料改性的聚乙烯醇，作为一种新型的质子交换膜，可用于潜在的燃料电池应用

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摘要

A new type of proton-exchange membrane based on poly(vinyl alcohol) (PVA) modified KE reactive dyes (KE-4BD) was prepared and evaluated as H+-conducting polymer electrolytes. The effects of the content of KE-4BD on the membrane H+ conductivity and water uptake were studied with an alternating-current impedance technique and the method of weighing, respectively. Fourier transform infrared and scanning electron microscopy were used for the chemical and structural characterization of these membranes. With all of these properties, the optimal mass ratio between PVA and KE-4BD was 1:0.5, and the resulting membrane exhibited a high proton conductivity (0.109 S/cm) at room temperature; this afforded a power density of 83.9 mW/cm(2) at 210.4 mA/cm(2) and an open-circuit voltage of 810.8 mV. The PVA/KE-4BD membranes showed a high oxidative stability in Fenton's reagent (3% H2O2 v/v, 2 ppm FeSO4). Thermal analysis also showed that the membranes exhibited a significant improvement in thermal stability. (C) 2015 Wiley Periodicals, Inc.
机译：制备了一种新型的基于聚乙烯醇（PVA）改性的KE活性染料（KE-4BD）的质子交换膜，并将其评价为H +导电高分子电解质。分别采用交流阻抗技术和称重法研究了KE-4BD含量对膜H +电导率和吸水率的影响。傅里叶变换红外和扫描电子显微镜用于这些膜的化学和结构表征。具有所有这些性质，PVA和KE-4BD之间的最佳质量比为1：0.5，并且所得的膜在室温下表现出高的质子传导性（0.109S / cm）。这样在210.4 mA / cm（2）时功率密度为83.9 mW / cm（2），开路电压为810.8 mV。 PVA / KE-4BD膜在Fenton试剂中表现出较高的氧化稳定性（3％H2O2 v / v，2 ppm FeSO4）。热分析还表明，该膜表现出热稳定性的显着改善。 （C）2015年Wiley Periodicals，Inc.

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