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首页> 外文期刊>Japanese journal of applied physics >Drying process of water in a Nafion membrane embedded in the fuel cell analyzed by coherent anti-Stokes Raman scattering spectroscopy
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Drying process of water in a Nafion membrane embedded in the fuel cell analyzed by coherent anti-Stokes Raman scattering spectroscopy

机译：用相干反斯托克斯拉曼散射光谱法分析燃料电池中Nafion膜中水的干燥过程

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摘要

A coherent anti-Stokes Raman scattering (CARS) spectroscopy system was designed to measure the transient behavior of the humidification of a Nafion membrane used in a polymer electrolyte fuel cell (PEFC) We observed a variation in the intensity of the O-H stretching vibration peak of water during dry and wet gas flow. From our measurements, we found that our system showed a high time resolution enough to measure humidification variation in a Nation membrane in a PEFC. The high acquisition rate revealed the nonequilibrium process of the dehydration or hydration of the Nafion membrane through the temporal variation in the intensity of the O-H stretching vibration peak. The peak consisted of three peaks, suggesting that water molecules hydrated with different bonding energies. The transient behavior of the peaks was probably attributed to the motion of hydration molecules in the proton channel. (C) 2018 The Japan Society of Applied Physics
机译：设计了相干的反斯托克斯拉曼散射（CARS）光谱系统，以测量聚合物电解质燃料电池（PEFC）中使用的Nafion膜的加湿的瞬态行为。我们观察到干，湿气流中的水。从我们的测量中，我们发现我们的系统显示出足够高的时间分辨率，可以测量PEFC中国家膜的湿度变化。高采集速率表明，通过O-H拉伸振动峰强度的时间变化，Nafion膜的脱水或水合作用不平衡。该峰由三个峰组成，表明水分子以不同的键合能水合。峰的瞬态行为可能归因于质子通道中水合分子的运动。 （C）2018日本应用物理学会

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  • 来源
    《Japanese journal of applied physics》 |2018年第11期|117101.1-117101.5|共5页
  • 作者

    Syouji Atsushi; Sakai Masaru; Hara Masanori; Matsushima Hisayoshi;

  • 作者单位

    Univ Yamanashi, Ctr Crystal Sci & Technol, Kofu, Yamanashi 4008511, Japan;

    Univ Yamanashi, Fac Engn, Kofu, Yamanashi 4008510, Japan;

    Univ Yamanashi, Fuel Cell Nanomat Ctr, Kofu, Yamanashi 4000021, Japan|Toyota Technol Inst, Nagoya, Aichi 4688511, Japan;

    Univ Yamanashi, Fuel Cell Nanomat Ctr, Kofu, Yamanashi 4000021, Japan|Hokkaido Univ, Fac Engn, Sapporo, Hokkaido 0608628, Japan;

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