Oxygen permeable Ce0.8Gd0.2O1.9-CoFe 2O4 thin films prepared on porous Ce0.8Gd 0.2O1.9 substrates

Isao Kagomiya, Takashi Iijima, Hirofumi Kakuta, Hitoshi Takamura

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We propose the use of porous substrates and thin films of oxygen permeable ceramics as a method for separating oxygen from air. The porosity and pore size of various Ce0.8Gd0.2O1.9; (CGO) porous substrates were modified in an attempt to optimize the oxygen permeable flux of CGO-CoFe2O4 thin films. The oxygen permeable flux density of the CGO-CoFe2O4 thin film coated on the porous CGO substrate was found to be 4.7 μmol cm-2 s-1 under a O2 partial pressure difference (-log(POII/POI)) of 4.5 at 1000°C. This value is about 20 times higher than that of the 1 mm thick bulk material.

Original languageEnglish
JournalElectrochemical and Solid-State Letters
Volume8
Issue number1
DOIs
Publication statusPublished - 2005 Jan 31

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering
  • Electrochemistry

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