Anhydrous proton conductivity of a lamella-structured inorganic-organic zirconium-monododecyl phosphate crystalline hybrid

Je Deok Kim, Toshiyuki Mori, Itaru Honma

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

A lamella-structured inorganic-organic zirconium-monododecyl phosphate crystalline hybrid was investigated as an anhydrous proton conductor. Inorganic zirconium ions were coordinated by OH groups of a phosphate moiety from organic monododecyl phosphate. The inorganic-organic zirconium-monododecyl phosphate hybrid showed a lamella structure with crystalline ZrP, and the thermal stability increased up to 230 °C. A maximum proton conductivity of 2 × 10-3 S cm-1 was obtained at 150 °C under anhydrous conditions. The high proton conductivity under high temperature and anhydrous conditions could be explained by considering the interaction between Zr ions and the phosphate group, and the phosphate concentration in the lamella-structured inorganic-organic zirconium-monododecyl phosphate hybrid.

Original languageEnglish
Pages (from-to)694-697
Number of pages4
JournalJournal of Power Sources
Volume172
Issue number2
DOIs
Publication statusPublished - 2007 Oct 25
Externally publishedYes

Keywords

  • Anhydrous proton conductor
  • High-temperature PEFC
  • Inorganic-organic hybrid
  • Zirconium-monododecyl phosphate hybrid

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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