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首页> 外文期刊>Journal of power sources >Thin film electrocatalyst layer for unitized regenerative polymer electrolyte fuel cells
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Thin film electrocatalyst layer for unitized regenerative polymer electrolyte fuel cells

机译：用于单元再生聚合物电解质燃料电池的薄膜电催化剂层

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摘要

Thin film electrocatalyst layers with various PTFE and Nafion contents for unitized regenerative polymer electrolyte fuel cells (URFCs) were prepared by the paste method and the performance as URFC electrodes was examined. Comparing the terminal voltage versus current density curves of the URFC, it was found that the PTFE content in the electrocatalyst layer affected only the fuel cell performance; the electrode containing 5―7 wt.% PTFE was appropriate for the URFC. The Nafion content in the electrode affected both the fuel cell and water electrolysis performance; the electrode containing 7-9 wt.% Nafion showed good performance. The addition of a small amount of iridium catalyst (about 10 at.%) to the oxygen electrode layer significantly improved the URFC performance. Catalyst loadings can be reduced to <1/3 by using the electrode prepared by the paste method compared to the conventional one without degrading the URFC performance.
机译：通过粘贴法制备了具有不同PTFE和Nafion含量的薄膜电催化剂层，用于单元再生聚合物电解质燃料电池（URFC），并测试了其作为URFC电极的性能。比较URFC的端电压与电流密度曲线，发现电催化剂层中的PTFE含量仅影响燃料电池的性能。含5-7wt％PTFE的电极适用于URFC。电极中的Nafion含量会影响燃料电池和水的电解性能。含有7-9重量％的Nafion的电极表现出良好的性能。向氧气电极层中添加少量铱催化剂（约10 at。％）可显着提高URFC性能。与传统的电极相比，通过使用粘贴法制备的电极可以将催化剂的负载降低到<1/3，而不会降低URFC性能。

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