Journal ArticleDOI
Improved cathode/electrolyte interface of SOFC
TLDR
In this paper, the performance of porous La0.6Sr0.4Co0.2Fe0.8O3−−δ (LSCF) cathodes is improved by inserting a dense LSCF layer.About:
This article is published in Solid State Ionics.The article was published on 2011-06-16. It has received 86 citations till now. The article focuses on the topics: Polarization (electrochemistry) & Electrolyte.read more
Citations
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A perspective on low-temperature solid oxide fuel cells
TL;DR: In this article, the authors provide a perspective on solid oxide fuel cells operating at low temperature, defined here to be the range from ∼400 °C to 650 °C, with a focus on materials that have demonstrated good properties and cell performance.
Journal ArticleDOI
Exceptional power density and stability at intermediate temperatures in protonic ceramic fuel cells
Sihyuk Choi,Chris J. Kucharczyk,Chris J. Kucharczyk,Yangang Liang,Xiaohang Zhang,Ichiro Takeuchi,Ho-Il Ji,Ho-Il Ji,Sossina M. Haile +8 more
TL;DR: In this paper, a high-activity cathode and a chemically stable electrolyte were used to overcome the performance and stability challenges of protonic ceramic fuel cells (PCFCs).
Journal ArticleDOI
Solid State Ionics: from Michael Faraday to green energy—the European dimension
TL;DR: During the last few decades, much progress has been made in finding and investigating novel solid electrolytes and in using them for the preservation of the authors' environment, in particular in advanced solid state battery systems, fuel cells and sensors.
Journal ArticleDOI
Influence of configuration and microstructure on performance of La2NiO4+δ intermediate-temperature solid oxide fuel cells cathodes
TL;DR: In this article, the influence of sintering temperature on the polarization resistance of screen printed La2NiO4þd (LNO) cathodes is studied, and the electrode dispersion is measured on symmetrical cells with a 100 mm 3% yttriadoped zirconia (TZ3Y) electrolyte and screen-printed yttria-doped ceria (YDC) barrier layers.
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Use of a distribution function of relaxation times (DFRT) in impedance analysis of SOFC electrodes
Bernard A. Boukamp,Aurélie Rolle +1 more
TL;DR: In this paper, the authors compared the inversion results obtained from Fourier Transform (FT), Tikhonov Regularization (TR) and multi-(RQ) CNLS fits (m(RQ), thus allowing evaluation and validation of these methods, which is illustrated in this contribution with four examples of SOFC cathodes with quite different properties.
References
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Journal ArticleDOI
A Nonlinear Least Squares Fit procedure for analysis of immittance data of electrochemical systems
TL;DR: A Nonlinear Least Squares Fit (NLLSF) program is described, with which frequency dispersion data of electrochemical systems can be analyzed in terms of an equivalent circuit through the use of an unique Circuit Description Code (CDC).
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Electrode Kinetics of Porous Mixed‐Conducting Oxygen Electrodes
TL;DR: In this paper, the authors used continuum modeling to analyze the mechanism of the oxygen reduction reaction at a porous mixed-conducting oxygen electrode, and showed that solid-state oxygen diffusion and surface exchange dominate the electrochemical behavior, producing effective "chemical" resistances and capacitances.
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A Linear Kronig‐Kramers Transform Test for Immittance Data Validation
TL;DR: In this paper, a method is described with which immittance data can be tested for Kronig-Kramers compliance, which is linear in nature and is based on a predetermined set of relaxation times.
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Cathodic Polarization Phenomena of Perovskite Oxide Electrodes with Stabilized Zirconia
TL;DR: In this paper, the cathodic polarization of the electrodes sputtered on yttria stabilized zirconia electrolyte was studied at 800°C in air and the system showed high electrode activity for oxygen reduction.
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Electrochemical Characterization of La0.6Sr0.4Co0.2Fe0.8 O 3 Cathodes for Intermediate-Temperature SOFCs
TL;DR: In this article, the electrochemical properties of La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 (LSCF) have been assessed for its application as a cathode in intermediate-temperature solid oxide fuel cells.