触媒層内輸送内現象評価に向けたアイオノマーSPR特性の温度・湿度依存性の調査

抄録

Ionomer used in the catalyst layer of polymer electrolyte fuel cells (PEFCs) acts as a transport path for protons, but it also causes resistance in the transport of oxygen. Therefore, ionomer is one of the essential components for achieving high performance PEFC. However, their structure and properties have not been fully elucidated. In this study, we conducted experiments and improved the experimental setup to perform Surface Plasmon Resonance (SPR) measurements on nanoscale ionomer films formed on a substrate. We aimed to carry out these measurements under conditions where film thickness, the surrounding humidity, and temperature were varied.