In situ EPR studies of chemical diffusion in oxides

Kazunari Sasaki, J. Maier

研究成果: ジャーナルへの寄稿記事

24 引用 (Scopus)

抄録

Electron paramagnetic resonance (EPR) was applied as an in situ technique at high temperatures up to 1000°C for defect chemical and transport studies of ionic and mixed conductors. Equilibrium absorption intensities were examined as a function of oxygen partial pressure temperature and doping content for the model materials Y2O3-stabilized ZrO2 and Fe-doped SrTiO3. By this novel use of EPR in the field of solid state ionics, chemical diffusion coefficients and surface exchange coefficients of oxygen can be measured without any probe electrodes under diffusion conditions. This study moreover confirmed the ability to depress substantially the chemical diffusivity by using deep dopants such as Mn or Fe.

元の言語英語
ページ(範囲)3055-3061
ページ数7
ジャーナルPhysical Chemistry Chemical Physics
2
発行部数13
DOI
出版物ステータス出版済み - 7 1 2000

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Oxides
Paramagnetic resonance
electron paramagnetic resonance
oxides
oxygen
Doping (additives)
Oxygen
diffusivity
partial pressure
diffusion coefficient
conductors
solid state
Partial pressure
electrodes
probes
defects
coefficients
Temperature
Defects
Electrodes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

これを引用

In situ EPR studies of chemical diffusion in oxides. / Sasaki, Kazunari; Maier, J.

:: Physical Chemistry Chemical Physics, 巻 2, 番号 13, 01.07.2000, p. 3055-3061.

研究成果: ジャーナルへの寄稿記事

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