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首页> 外文期刊>International journal of green energy >A Novel Composite Membrane from QPSU and SiO2 for Solid Alkaline Fuel Cell Applications
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A Novel Composite Membrane from QPSU and SiO2 for Solid Alkaline Fuel Cell Applications

机译：QPSU和SiO2的新型复合膜，用于固体碱性燃料电池

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摘要

The goal of this work is to develop a novel composite membrane from quaternized polysulfone (QPSU) and silica (SiO2), to fabricate alkaline membrane electrode assemblies (MEAs) and to subsequently test the MEAs in 5 cm x 5 cm single cell configuration using Pt/C and Ag/C as anode and cathode catalysts, respectively. The composite membranes were characterized in terms of water absorption, ion exchange capacity and ionic conductivity. The physicochemical studies Fourier transform infra red (FT-IR), thermogravimetric analysis (TGA), X-ray diffraction (XRD) studies, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and universal testing machine (UTM) were used to investigate the relation between the structure and performance of the composite membranes. The results show that the SiO2 was compatible with the QPSU membrane. The thermal stability and ionic conductivity of the QPSU/SiO2 composite membranes were higher than that of quaternized polysulfone (QPSU) membrane. The maximum performance was achieved for 10 wt.% SiO2 with power density of 149.6 mW/cm(2) at current density of 440 mA/cm(2).
机译：这项工作的目的是开发一种由季铵化的聚砜（QPSU）和二氧化硅（SiO2）制成的新型复合膜，以制造碱性膜电极组件（MEA），然后使用Pt在5 cm x 5 cm单电池配置中测试MEA / C和Ag / C分别作为阳极和阴极催化剂。根据吸水率，离子交换容量和离子电导率对复合膜进行了表征。使用了理化研究傅里叶变换红外（FT-IR），热重分析（TGA），X射线衍射（XRD）研究，扫描电子显微镜（SEM），透射电子显微镜（TEM）和通用测试机（UTM）研究复合膜的结构与性能之间的关系。结果表明，SiO2与QPSU膜相容。 QPSU / SiO2复合膜的热稳定性和离子电导率高于季铵化聚砜（QPSU）膜。在440 mA / cm（2）的电流密度下，功率密度为149.6 mW / cm（2）的10 wt。％SiO2达到了最大性能。

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