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High-Performance and Durable Membrane Electrode Assemblies for High-Temperature Polymer Electrolyte Membrane Fuel Cells

机译:用于高温聚合物电解质膜燃料电池的高性能且耐用的膜电极组件

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摘要

Membrane electrode assemblies (MEAs) with gas diffusion electrodes (GDEs) fabricated by various catalyst layer (CL) deposit technologies were investigated for the application of high-temperature polymer electrolyte membrane fuel cell (HT-PEMFC). The physical properties of the GDEs were characterized by scanning electron microscopy (SEM) and pore size distribution. The electrochemical properties were evaluated and analyzed by polarization curve, Tafcl equation, electrochemistry impedance spectroscopy (E1S), and cyclic voltammetry (CV). The results showed that the electrodes prepared by ultrasonic spraying and automatic catalyst spraying under irradiation (ACSUI) methods have superior CL structure and high electrochemistry activity, resulting in high fuel cell performances. Durability tests revealed the feasibility of the electrodes for long-term HT-PEMFC operation.
机译:研究了通过各种催化剂层(CL)沉积技术制造的带有气体扩散电极(GDE)的膜电极组件(MEA)在高温聚合物电解质膜燃料电池(HT-PEMFC)中的应用。 GDEs的物理性质通过扫描电子显微镜(SEM)和孔径分布表征。通过极化曲线,Tafcl方程,电化学阻抗谱(E1S)和循环伏安法(CV)对电化学性能进行评估和分析。结果表明,通过超声喷涂和辐射下自动催化剂喷涂(ACSUI)方法制备的电极具有优异的CL结构和较高的电化学活性,从而具有较高的燃料电池性能。耐久性测试表明,该电极可长期用于HT-PEMFC。

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