Determination of oxygen nonstoichiometry in SrFeO3−δby solid-state Coulometric titration

Jiho Yoo; Chung-Yul Yoo; Ji-Haeng Yu; Allan J. Jacobson

doi:10.1111/jace.14755

Determination of oxygen nonstoichiometry in SrFeO3−δby solid-state Coulometric titration

Journal of the American Ceramic Society ◽

10.1111/jace.14755 ◽

2017 ◽

Vol 100 (6) ◽

pp. 2690-2699 ◽

Cited By ~ 10

Author(s):

Jiho Yoo ◽

Chung-Yul Yoo ◽

Ji-Haeng Yu ◽

Allan J. Jacobson

Keyword(s):

Solid State ◽

Coulometric Titration ◽

Oxygen Nonstoichiometry

Download Full-text

ChemInform Abstract: Determination of Oxygen Nonstoichiometry and Diffusivity in Mixed Conducting Oxides by Oxygen Coulometric Titration. Part 2. Oxygen Nonstoichiometry and Defect Model for La0.8Sr0.2CoO3-δ.

ChemInform ◽

10.1002/chin.199732002 ◽

2010 ◽

Vol 28 (32) ◽

pp. no-no

Author(s):

M. H. R. LANKHORST ◽

H. J. M. BOUWMEESTER

Keyword(s):

Coulometric Titration ◽

Oxygen Nonstoichiometry ◽

Defect Model ◽

Conducting Oxides

Download Full-text

ChemInform Abstract: Determination of Oxygen Nonstoichiometry and Diffusivity in Mixed Conducting Oxides by Oxygen Coulometric Titration. Part 1. Chemical Diffusion in La0.8Sr0.2CoO3-δ.

ChemInform ◽

10.1002/chin.199732001 ◽

2010 ◽

Vol 28 (32) ◽

pp. no-no

Author(s):

M. H. R. LANKHORST ◽

H. J. M. BOUWMEESTER

Keyword(s):

Coulometric Titration ◽

Chemical Diffusion ◽

Oxygen Nonstoichiometry ◽

Conducting Oxides

Download Full-text

Determination of Oxygen Nonstoichiometry and Diffusivity in Mixed Conducting Oxides by Oxygen Coulometric Titration: I. Chemical Diffusion in

Journal of The Electrochemical Society ◽

10.1149/1.1837580 ◽

1997 ◽

Vol 144 (4) ◽

pp. 1261-1267 ◽

Cited By ~ 43

Author(s):

M. H. R. Lankhorst ◽

H. J. M. Bouwmeester

Keyword(s):

Coulometric Titration ◽

Chemical Diffusion ◽

Oxygen Nonstoichiometry ◽

Conducting Oxides

Download Full-text

Determination of Oxygen Nonstoichiometry and Diffusivity in Mixed Conducting Oxides by Oxygen Coulometric Titration: II. Oxygen Nonstoichiometry and Defect Model for

Journal of The Electrochemical Society ◽

10.1149/1.1837581 ◽

1997 ◽

Vol 144 (4) ◽

pp. 1268-1273 ◽

Cited By ~ 28

Author(s):

M. H. R. Lankhorst ◽

H. J. M. Bouwmeester

Keyword(s):

Coulometric Titration ◽

Oxygen Nonstoichiometry ◽

Defect Model ◽

Conducting Oxides

Download Full-text

Electrical Conductivity and Nonstoichiometry in Pr0.545Ce0.455O2-x

MRS Proceedings ◽

10.1557/proc-453-531 ◽

1996 ◽

Vol 453 ◽

Cited By ~ 2

Author(s):

O. Porat ◽

H. L. Tuller ◽

M. Shelef ◽

E. M. Logothetis

Keyword(s):

Electrical Conductivity ◽

Phase Separation ◽

Solid State ◽

Small Polaron ◽

Coulometric Titration ◽

Oxygen Nonstoichiometry ◽

Conductivity Measurements ◽

Two Phase ◽

Polaron Hopping ◽

P Type

AbstractThe oxygen nonstoichiometry of Pr0.545Ce0.455O2-x was studied by solid state coulometric titration and was found to be extensive (0 ≤ y ≤ 0.28) at temperatures of 400–600 °C. The Po2 - x curves showed evidence of the existence of a number of single and two phase regions. Electrical conductivity measurements, performed under similar conditions, exhibited a p-n transition for temperature of 500 °C and below. The activated p-type conductivity was modeled in terms of the small polaron hopping mechanism. The p-n transition was correlated with the onset of phase separation.

Download Full-text