Electrochemical Hydrogen Pump Using SrCeO 3 -Based Proton Conductor: Effect of Water Vapor at the Cathode on the Pumping Capacity

Hiroshige Matsumoto, Seiji Hamajima, Tamotsu Yajima, Hiroyasu Iwahara

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67 Citations (Scopus)


Electrochemical pumping of hydrogen through high temperature-type proton-conducting solid electrolytes has heen studied. The effect of water vapor introduced to the cathode on the hydrogen-pumping capacity of the SrCe 0.95 Yb 0.05 O 3-α proton conductor cell was investigated in the present study. The pumping capacity of the cell was greatly enhanced when water vapor was introduced to the cathode. The water vapor was consumed at the cathode due to the minor partial oxide ionic conduction in the electrolyte. The role of the water vapor at the cathode in the hydrogen pump is discussed.

Original languageEnglish
JournalJournal of the Electrochemical Society
Issue number10
Publication statusPublished - Oct 1 2001
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

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