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首页> 外文期刊>Metals and Materials International >Optimum Content of Nafion Ionomer for the Fabrication of MEAs in PEMFCs with Spray-Coated Pt/CNT Electrodes
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Optimum Content of Nafion Ionomer for the Fabrication of MEAs in PEMFCs with Spray-Coated Pt/CNT Electrodes

机译：在喷涂Pt / CNT电极的PEMFC中制备MEA时Nafion离聚物的最佳含量

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摘要

To enhance the performance of a polymer electrolyte membrane fuel cell (PEMFC), a Pt catalyst was supported on carbon nanotubes (CNTs) and the optimum content of Nafion ionomer in the Pt/CNT electrode was examined by cell performance tests, cyclic voltammetry, and electrochemical impedance spectroscopy. The amount of the Pt catalyst supported on the CNTs was 34 wt.%. The Nafion content significantly changed the protonic and electronic conductivities as well as the mass transfer properties. As such, the performance of the cell was highly dependent on the content of Nafion ionomer. The results of the cell performance tests revealed that the optimum content of Nafion ionomer in the Pt/CNT electrode was about 20 wt.%.
机译：为了提高聚合物电解质膜燃料电池（PEMFC）的性能，将Pt催化剂负载在碳纳米管（CNT）上，并通过电池性能测试，循环伏安法和循环伏安法研究了Pt / CNT电极中Nafion离聚物的最佳含量。电化学阻抗谱。负载在CNT上的Pt催化剂的量为34重量％。 Nafion含量显着改变了质子和电子电导率以及传质性能。这样，电池的性能高度依赖于Nafion离聚物的含量。电池性能测试的结果表明，Pt / CNT电极中Nafion离聚物的最佳含量为约20重量％。

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