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New approach by electrospray technique to prepare a gas diffusion layer for the proton exchange membrane fuel cell anode
Materials Today Advances ( IF 8.1 ) Pub Date : 2021-09-01 , DOI: 10.1016/j.mtadv.2021.100161
L.M.G. Silva 1, 2, 3 , G.N. Leocádio 4 , R.F.B. de Souza 1 , J.C. Mierzwa 4 , A. Duong 3 , E.C. Venancio 2 , A.O. Neto 1
Affiliation  

The performance of the electrospray technique was applied to obtain a gas diffusion layer (GDL) for a proton exchange membrane fuel cell. It was confirmed by confocal microscopy that polytetrafluorethylene (PTFE) was impregnated into the backbone, forming a dispersed layer of microscopic size homogeneously distributed over the substrate. The PTFE layer was characterized by infrared spectroscopy and thermogravimetric analysis. In this work, we demonstrated that the use of the GDL prepared by electrospray increases the maximum power of the H2/O2 fuel cell by about 10% and decreases the diffusion loss of the electrode owing to a better distribution characteristic hydrophobic coating with low impedance to gas diffusion. Thus, our method is promising for the development of fuel cells by the production of diffusion layers.



中文翻译:

电喷雾技术制备质子交换膜燃料电池阳极气体扩散层的新方法

应用电喷雾技术的性能来获得用于质子交换膜燃料电池的气体扩散层 (GDL)。共聚焦显微镜证实,聚四氟乙烯 (PTFE) 浸渍到骨架中,形成均匀分布在基材上的微观尺寸分散层。PTFE层通过红外光谱和热重分析表征。在这项工作中,我们证明了使用电喷雾制备的 GDL 增加了 H 2 /O 2的最大功率由于更好的分布特性疏水涂层对气体扩散具有低阻抗,因此燃料电池减少了约 10%,并降低了电极的扩散损失。因此,我们的方法有望通过生产扩散层来开发燃料电池。

更新日期:2021-09-02
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