A series of novel composite anion exchange membranes were prepared via simple solution casting method using synthesized quaternary ammonium functionalized Polyhedral Oligomeric Silsesquioxane (QA-POSS) with Quaternary polysulfone (QPSU). QA-POSS was synthesized from prepared Cl-POSS and well characterized by FT-IR, NMR, SEM and TEM analyses to confirm the chemical modifications and cubic morphologies. The QA-POSS nano particles have dual role in the membrane providing additional ion conducting groups and reinforcing the membrane in molecular level for the overall improvement of composite membrane. Additionally, the composite membranes were characterized by XRD, SEM, Ion exchange capacity (IEC), water uptake and conductivity to ensure the suitability of its use as an electrolyte in alkaline fuel cell. Finally, membrane electrode assembly (MEA) was fabricated using Pt anode (0.25 mg/cm²), Ag cathode (0.375 mg/cm²) and various synthesized composite membranes, and then it was tested in real time fuel cell setup. The membrane with 15% QA-POSS showed the maximum power density of 321 mW/cm². The results showed that QA-POSS possess the ability to enhance the performance of the anion exchange membrane significantly.

采用合成的季铵官能化多面体寡聚倍半硅氧烷（QA-POSS）和季聚砜（QPSU），通过简单溶液流延法制备了一系列新型复合阴离子交换膜。由制备的Cl-POSS合成QA-POSS，并通过FT-IR，NMR，SEM和TEM分析进行很好的表征，以确认化学修饰和立方形态。QA-POSS纳米颗粒在膜中具有双重作用，可提供额外的离子导电基团并在分子水平上增强膜，从而全面改善复合膜。另外，通过XRD，SEM，离子交换容量（IEC），吸水率和电导率对复合膜进行了表征，以确保将其用作碱性燃料电池中的电解质。最后，²），Ag阴极（0.375 mg / cm ²）和各种合成的复合膜，然后在实时燃料电池设置中对其进行测试。含有15％QA-POSS的膜的最大功率密度为321 mW / cm ²。结果表明，QA-POSS具有显着增强阴离子交换膜性能的能力。