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High-temperature coulometric titration of La1-xSrxCoO3-δ : Evidence for the effect of electronic band structure on nonstoichiometry behavior
- M.H.R. Lankhorst, H. J. Bouwmeester, H. Verweij
- Chemistry
- 1 November 1997
The equilibrium oxygen chemical potential and the partial energy and entropy of O2in perovskites La1−xSrxCoO3−δwere measured as a function ofδandxby high-temperature oxygen coulometric titration. An… Expand
Oxygen Exchange and Diffusion Coefficients of Strontium‐Doped Lanthanum Ferrites by Electrical Conductivity Relaxation
- J. E. T. Elshof, M.H.R. Lankhorst, H. Bouwmeester
- Chemistry
- 1 March 1997
Electrical conductivity relaxation experiments were performed on thin specimens of La1–xSrxFeO3–delta (x = 0.1, 0.4) at oxygen partial pressures pO2 = 10–5 – 1 bar in the temperature range 923 to… Expand
Prospects of doped Sb-Te phase-change materials for high-speed recording
- L. van Pieterson, M.H.R. Lankhorst, M. van Schijndel, B. Jacobs, J. Rijpers
- Materials Science
- International Symposium on Optical Memory and…
- 7 November 2002
Materials optimization is a very important aspect in high-speed optical recording. It is observed that for doped Sb-Te phase-change materials, a high crystallization rate at elevated temperatures is… Expand
Thermodynamic Quantities and Defect Structure of La0.6Sr0.4Co1−yFeyO3−δ(y=0–0.6) from High-Temperature Coulometric Titration Experiments
- M.H.R. Lankhorst, J. E. T. Elshof
- Chemistry
- 1 May 1997
The partial energies and entropies of O2in perovskite-type oxides La0.6Sr0.4Co1−yFeyO3−δ(y=0, 0.1, 0.25, 0.4, 0.6) were determined as a function of nonstoichiometryδby coulometric titration of oxygen… Expand
Determination of Oxygen Nonstoichiometry and Diffusivity in Mixed Conducting Oxides by Oxygen Coulometric Titration. II Oxygen Nonstoichiometry and Defect Model for La0.8Sr0.2CoO3-delta
- M.H.R. Lankhorst, H. Bouwmeester
- Chemistry
- 1 April 1997
The oxygen nonstoichiometry of La0.8Sr0.2CoO3-delta has been determined as a function of oxygen partial pressure and temperature using a high-temperature coulometric titration cell. For each measured… Expand
Thermodynamic and transport properties of mixed ionic-electronic conducting perovskite-type oxides
- M.H.R. Lankhorst
- Materials Science
- 7 February 1997
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Chemical diffusion and oxygen exchange of La0.6Sr0.4Co0.6Fe0.4O3−δ
- J. E. T. Elshof, M.H.R. Lankhorst, H. M. Bouwmeester
- Chemistry
- 1 August 1997
The transport parameters of La0.6Sr0.4Co0.6Fe0.4O3−δ were determined by electrical conductivity relaxation and high temperature coulometric titration experiments. The experimental response curves… Expand
Importance of electronic band structure to nonstoichiometric behaviour of La0.8Sr0.2CoO3 − δ
- M.H.R. Lankhorst, H. Bouwmeester, H. Verweij
- Chemistry
- 2 March 1997
The partial energy and entropy involved in the process of oxygen incorporation into the mixed oxygen ion and electronic conducting La0.8Sr0.2CoO3 was measured by oxygen coulometric titration. The… Expand
Determination of oxygen nonstoichiometry and diffusivity in mixed conducting oxides by oxygen coulometric titration. 1: Chemical diffusion in La{sub 0.8}Sr{sub 0.2}CoO{sub 3-δ}
- M.H.R. Lankhorst, H. Bouwmeester
- Chemistry
- 1 April 1997
Oxygen coulometric titration has been applied to measure chemical diffusion in La0.8Sr0.2CoO3-δ between 700 and 1000°C. The transient current response to a potentiostatic step has been transformed… Expand
Oxygen non-stoichiometry and oxygen diffusivity of mixed conducting perovskites
- M.H.R. Lankhorst, H. J. Bouwmeester, B. Boukamp, H. Verweij
- Materials Science
- 28 January 1997
An oxygen coulometric titration cell has been designed to measure non-stoichiometry and oxygen diffusivity of mixed oxygen ion and electronic conducting, La0.8Sr0.2CoO3-δ. Chemical diffusion data,… Expand