Effects of pressure on the performance of water electrolysis of the cell using Nafion membrane electrode

研究成果: ジャーナルへの寄稿記事

8 引用 (Scopus)

抄録

Pressure effects on the water electrolysis performance of the cell using Nafion 117 for electrolyte were investigated. It was found that the internal resistance of the cell decreased with increasing the pressure, while it is expected that the chemical equilibrium shifts to the reactant side. Detail analysis of the internal resistance by a current interruption method suggests that decrease in the internal resistance results from the decreased IR loss, which is assigned to the increased conductivity of Nafion 117 film. On the other hand, the overpotential of cathode and anode slightly increases as the pressure increases. In particular, the concentration overpotential on both electrodes increased under an elevated pressure. Since the internal resistance decreased by elevating water pressure, water electrolysis efficiency was improved to a value of 65% at 20 MPa, 100 mA/cm2. Consequently, this study reveals that pressure shows the prospective effects on the water electrolysis performance of the cell using Nafion 177 electrolyte in an initial short period.

元の言語英語
ページ(範囲)288-292
ページ数5
ジャーナルElectrochemistry
76
発行部数4
DOI
出版物ステータス出版済み - 1 1 2008

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Electrolysis
Membranes
Electrodes
Water
Electrolytes
Pressure effects
Anodes
Cathodes
perfluorosulfonic acid

All Science Journal Classification (ASJC) codes

  • Electrochemistry

これを引用

Effects of pressure on the performance of water electrolysis of the cell using Nafion membrane electrode. / Michishita, Hiroyuki; Matsumoto, Hiroshige; Ishihara, Tatsumi.

:: Electrochemistry, 巻 76, 番号 4, 01.01.2008, p. 288-292.

研究成果: ジャーナルへの寄稿記事

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