S053021 ラマン分光法・密度汎関数法による固体高分子電解質膜内の水吸着状態解析([S05302]次世代電池のナノ・マイクロフルイディクス(2))

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タイトル別名
  • S053021 Analysis of State of Water in Polymer Electrolyte Membrane by Raman Spectroscopy and Density Functional Theory

抄録

Proton and water transport through polymer electrolyte membrane have great impacts on the cell performance under low relative humicity and high current density operation. In particular, proton transport are strongly related to state of water in the PEM. However, its mechanism is not yet fully understood. In this study, state of water in PEM was evaluated from OH stretching vibration mode obtained by micro-Raman spectroscopy. Density functional theory was adopted for the analysis of micro-Raman results. The results suggested that OH vibration peak around 3200 cm^-1 could be due to water molecule network, which affected proton conductivity under low relative humicity condition.

収録刊行物

  • 年次大会

    年次大会 2011 (0), _S053021-1-_S053021-4, 2011

    一般社団法人 日本機械学会

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