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首页> 外文期刊>Polymer Composites >Octa-imidazolium POSS/quaternized polysulfone composite anion exchange membrane for alkaline fuel cell
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Octa-imidazolium POSS/quaternized polysulfone composite anion exchange membrane for alkaline fuel cell

机译：Octa-Imidazolium POSS /季铵化聚砜复合阴离子交换膜用于碱性燃料电池

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In the present study, a series of new anion exchange composite membranes were fabricated from pre-synthesized imidazolium grafted polyhedral oligomeric silsesquioxane (IM-POSS) with quaternary polysulfone (QPSU). Synthesized IM-POSS were acutely characterized by Fourier-transform infrared, NMR, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) investigations to confirm the chemical structure and cubic morphologies. The IM-POSS nanoparticles have binary function in the anion exchange membrane by providing more additional ion conducting groups (imidazolium) and by reinforcing the membrane in molecular level for overall improvement of composite membranes. The prepared composite membranes with various compositions of the IM-POSS/QPSU were characterized by X-ray diffraction, SEM, ion exchange capacity, water uptake (W-up), and conductivity to assure the appropriateness of their use as a solid alkaline electrolyte in anion exchange membrane fuel cell. The membrane electrode assembly was constructed using Pt anode (0.25 mg/cm(2)), Ag cathode (0.375 mg/cm(2)), and various IM-POSS/QPSU composite membranes, which was tested in an in-house built fuel cell setup. The membrane with 15% IM-POSS showed the maximum power density of 309 mW/cm(2). The results showed that the addition of IM-POSS is a straight forward and effectual method to enhance the hydroxide conductivity without sacrificing other properties of the membrane. POLYM. COMPOS., 40:1536-1544, 2019. (c) 2018 Society of Plastics Engineers
机译：在本研究中，通过预合成的咪唑鎓接枝多面体寡核苷酸（IM-POSS）制成一系列新的阴离子交换复合膜（IM-POSS）。合成的IM-POSS通过傅立叶变换红外，NMR，扫描电子显微镜（SEM）和透射电子显微镜（TEM）研究以确认化学结构和立方体形态。通过提供更多额外的离子传导基团（Imidazolium）并通过在分子水平中加强膜来整体改善复合膜的整体改善，通过在阴离子交换膜中具有二元功能。具有IM-POSS / QPSU的各种组合物的制备的复合膜，其特征在于X射线衍射，SEM，离子交换容量，水吸收（W-UP），以及用于确保其用作固体碱性电解质的适当性在阴离子交换膜燃料电池中。使用Pt阳极（0.25mg / cm（2）），Ag阴极（0.375mg / cm（2））和各种IM-POSS / QPSU复合膜构建膜电极组件，在内部建造的内部测试燃料电池设置。具有15％IM-POSS的膜显示最大功率密度为309mW / cm（2）。结果表明，添加IM-POSS是一种直接和有效的方法，以提高氢氧化物导电性而不牺牲膜的其他性质。聚合物。 Compos。，40：1536-1544,2019。（c）2018塑料工程师协会

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