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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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Hansen, Kent Kammer
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (30/30 displayed)
- 2019Corrosion Study of Cr-Oxide Ceramics Using Rotating Ring Disk Electrode
- 2019Silver Modified Cathodes for Solid Oxide Fuel Cellscitations
- 2018Electrochemical removal of NOx using oxide-based electrodes - A reviewcitations
- 2018Novel Processing of Cathodes for Solid Oxide Fuel Cells
- 2017Determination of the Resistance of Cone-Shaped Solid Electrodescitations
- 2016Effect of pore formers on properties of tape cast porous sheets for electrochemical flue gas purificationcitations
- 2015Hybrid direct carbon fuel cell anode processes investigated using a 3-electrode half-cell setupcitations
- 2015In Situ Studies of Fe4+ Stability in β-Li3Fe2(PO4)3 Cathodes for Li Ion Batteriescitations
- 2015Catalytic Enhancement of Carbon Black and Coal-Fueled Hybrid Direct Carbon Fuel Cellscitations
- 2014Removal of NOx with Porous Cell Stacks with La0.85Sr0.15CoxMn1-xO3+δ-Ce0.9Gd0.1O1.95 Electrodes Infiltrated with BaOcitations
- 2014High Performance Infiltrated Backbones for Cathode-Supported SOFC's
- 2013A combined SEM, CV and EIS study of multi-layered porous ceramic reactors for flue gas purificationcitations
- 2013Fabrication and Characterization of multi-layer ceramics for electrochemical flue gas purificationcitations
- 2012Electrochemical reduction of NO<sub>x</sub>
- 2010Solid Oxide Fuel Cell
- 2010Characterization of (La1-xSrx)(s)MnO3 and Doped Ceria Composite Electrodes in NOx-Containing Atmosphere with Impedance Spectroscopycitations
- 2010Ceria and strontium titanate based electrodes
- 2010Sintering effect on material properties of electrochemical reactors used for removal of nitrogen oxides and soot particles emitted from diesel enginescitations
- 2010The Effect of a CGO Barrier Layer on the Performance of LSM/YSZ SOFC Cathodescitations
- 2009Processing and characterization of porous electrochemical cells for flue gas purificationcitations
- 2009Electrochemical characterization and redox behavior of Nb-doped SrTiO3citations
- 2008Niobium-doped strontium titanates as SOFC anodes
- 2008Strontium Titanate-based Composite Anodes for Solid Oxide Fuel Cellscitations
- 2008Defect and electrical transport properties of Nb-doped SrTiO3citations
- 2007Synthesis of Nb-doped SrTiO3 by a modified glycine-nitrate processcitations
- 2007Gd0.6Sr0.4Fe0.8Co0.2O3-δ: A novel type of SOFC cathodecitations
- 2006Studies of Fe-Co based perovskite cathodes with different A-site cationscitations
- 2005Charge disproportionation in (X0.6Sr0.4)0.99Fe0.8Co0.2O3-δ perovskites (X = La, Pr, Sm, Gd)citations
- 2005LSFM perovskites as cathodes for the electrochemical reduction of NOcitations
- 2001Perovskites as catalysts for the selective catalytic reduction of nitric oxide with propene: Relationship between solid state properties and catalytic activitycitations
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article
Characterization of (La1-xSrx)(s)MnO3 and Doped Ceria Composite Electrodes in NOx-Containing Atmosphere with Impedance Spectroscopy
Abstract
This study used electrochemical impedance spectroscopy (EIS) to characterize composite metal oxide electrodes in atmospheres containing NO, NO2, and O2. Symmetrical cells with electrodes of (La1−xSrx)sMnO3 [(x,s)=(0.15,0.9) and (0.5, 0.99)] and doped ceria [Ce0.9Gd0.1O2 and Ce1−xGdxO2(x=0.1,0.2)] were subjected to EIS while varying the temperature (from 300 to 600°C), the composition of the atmosphere, and the gas flow. The impedance spectra were fitted to equivalent circuits, and common arcs were identified and sought related to physical and chemical processes. The electrodes had a much lower polarization resistance (Rp) when NO or NO2 was present in the atmosphere at low temperatures (300–400°C) than in air. The impedance spectra for electrodes in 1% NO in Ar were dominated by a low frequency arc at high temperatures (500–600°C). This arc seemed to be a type of conversion arc, which is related to a gaseous intermediate (possibly NO2), formed from NO, through which the electrode reaction occurs. Indications were found that the electrodes are not electrochemically active toward NO around open-circuit voltages.©2010 The Electrochemical Society