Quantitative video-rate hydration imaging of Nafion® proton exchange membranes with THz radiation
Quantitative video-rate hydration imaging of Nafion® proton exchange membranes with THz radiation
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DOI：
10.1109/irmmw-thz.2019.8874199
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发表时间：
2019-10
期刊：
影响因子：
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通讯作者：
Décio F. Alves de Lima;R. Letizia;Richard Dawson;Hungyen Lin
中科院分区：
文献类型：
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作者：
Décio F. Alves de Lima;R. Letizia;Richard Dawson;Hungyen Lin
Nafion®聚合物膜是质子交换膜燃料电池（PEMFC）的主要电解质材料，需要充分的水合以达到高质子传导性。与周围的聚合物组件相比，液态水的太赫兹（THz）辐射的相对高的衰减使得能够观察到对比度，用于检查Nafion®膜中的水积聚。本文研究了一种紧凑型太赫兹相机的可行性液态水映射和量化的Nafion®聚合物膜。
Nafion® polymeric membranes are the prime electrolyte material for proton exchange membrane fuel cells (PEMFC), requiring adequate hydration in order to reach high proton conductivity. The relatively high attenuation of terahertz (THz) radiation of liquid water compared to the surrounding polymer assembly enables a contrast to be observed for inspecting water build-up in Nafion® membranes. This paper investigates the feasibility of a compact THz camera for liquid water mapping and quantification in Nafion® polymeric membrane.