| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Bieberle-Hütter, Anja
Dutch Institute for Fundamental Energy Research
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Role of Excess Bi on the Properties and Performance of BiFeO 3 Thin-Film Photocathodescitations
- 2021Operando attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy for water splittingcitations
- 2020Relating the 3D geometry and photoelectrochemical activity of WO 3 -loaded N-Si nanowires:Design rules for photoelectrodescitations
- 2020Simple and Fast High-Yield Synthesis of Silver Nanowirescitations
- 2020Simple and Fast High-Yield Synthesis of Silver Nanowirescitations
- 2019Impedance spectra and surface coverages simulated directly from the electrochemical reaction mechanism:a nonlinear state-space approachcitations
- 2012Electrochemical Characterization of La 0.58 Sr 0.4 Co 0.2 Fe 0.8 O 3-δ Thin Film Electrodes Prepared by Pulsed Laser Depositioncitations
- 2012Electrochemical Characterization of La0.58Sr0.4Co0.2Fe0.8O3-δ Thin Film Electrodes Prepared by Pulsed Laser Depositioncitations
- 2011Impact of substrate material and annealing conditions on the microstructure and chemistry of yttria-stabilized-zirconia thin filmscitations
- 2011Impact of substrate material and annealing conditions on the microstructure and chemistry of yttria-stabilized-zirconia thin filmscitations
- 2010Flame spray deposition of La 0.6 Sr 0.4 CoO 3- δ thin films: microstructural characterization, electrochemical performance and degradationcitations
- 2010Flame spray deposition of La0.6Sr0.4CoO3−δ thin films: microstructural characterization, electrochemical performance and degradationcitations
- 2006Electrical and electrochemical characterization of microstructured thin film La1-xSrxCoO3 electrodescitations
Places of action
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article
Electrochemical Characterization of La0.58Sr0.4Co0.2Fe0.8O3-δ Thin Film Electrodes Prepared by Pulsed Laser Deposition
Abstract
Electrochemical properties of La0.58Sr0.4Co0.2Fe0.8O3-δ (LSCF) thin films with well defined microstructures have been investigated. Symmetrical cells were characterized by impedance spectroscopy in the temperature range from 625 to 750°C and the oxygen partial pressure, range from 10-2 to 1 atm. The area specific resistance for dense films was invariant with thicknesses between 130 and 1200 nm indicating oxygen surface exchange as the process limiting oxygen transport in the films. The capacitances deduced from the impedance data show a linear dependence with the film thickness. Values were as high as 0.2 F cm-2 suggesting a chemical capacitance. The oxygen non-stoichiometry was calculated using the measured chemical capacitance and a defect chemistry model. While dense films have an area specific resistance of 8 Ω cm2 at 750°C, porous films with an increase of the surface area by 26 times have only an area specific resistance of 0.38 Ω cm2. It is shown that the polarization resistance of thin films is approximately proportional to the inverse of the surface area of the porous cathodes in the temperature regime 625 to 750°C. The activation energy of the surface oxygen exchange process depends on the thin film microstructure as it decreased from 2.4 eV for dense films to 1.6 eV for porous films.