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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
Places of action
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article
Determination of the Resistance of Cone-Shaped Solid Electrodes
Abstract
A cone-shaped electrode pressed into an electrolyte can with advantagebe utilized to characterize the electro-catalytic propertiesof the electrode, because it is less dependent onthe electrode microstructure than e.g. thin porous composite electrodes,and reactions with the electrolyte occurring duringprocessing can be avoided. Newman's formula for current constriction inthe electrolyte is then used to deduce the activecontact area based on the ohmic resistance of the cell, and from thisthesurface specific electro-catalytic activity.However, for electrode materials with low electrical conductivity (likeCe<sub>1-x</sub>Pr<sub>x</sub>O<sub>2-δ</sub>), the resistance of thecell is significantly influenced by the ohmic resistance of the coneelectrode, wherefore it mustbe included. In this work the ohmic resistance of acone is modelled analytically based on simplified geometries. The twoanalytical models only differ by a model specificpre-factor, which is consequently determined by a finite element model.The model was applied to measurements on cones ofCe<sub>1-x</sub>Pr<sub>x</sub>O<sub>2-δ</sub> characterized on an YSZelectrolyte. Conclusively, the finite element model was used to obtain aformula for the resistancefor different cone angles with a small contactarea. This reproduces Newman's formula for a cone angle equal to 90°,i.e.a semi-infinite body.