Hydrogen separation from syngas using high-temperature proton conductors

Hiroshige Matsumoto, Sachio Okada, Shinichi Hashimoto, Kazuya Sasaki, Reiri Yamamoto, Makiko Enoki, Tatsumi Ishihara

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

Hydrogen pumps using high-temperature proton conductors have been examined as a candidate means of hydrogen separation from syngas. Durability to CO 2 is a main concern for the alkali-earth-containing perovskites and was tested for a few typical compositions. Ce-excluded and cerate-zirconate solid solution electrolytes, SrZr0.9Y0.1O 3-α, and BaCe0.6Zr0.3Nd 0.1O3-α were stable in CO2-containing atmospheres, whereas they showed poor overpotential characteristics when platinum electrodes were used. It is demonstrated that the hydrogen pumping properties can be much improved for the case of SrZr0.9Y 0.1O3-α by the use of palladium anode and SrCe 0.95Yb0.05O3-α interlayer for the cathode.

Original languageEnglish
Pages (from-to)93-99
Number of pages7
JournalIonics
Volume13
Issue number2
DOIs
Publication statusPublished - 2007 Apr

Keywords

  • Hydrogen pump
  • Hydrogen separation
  • Palladium electrode
  • Perovskite
  • Proton conductor

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)

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