| 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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Bentzen, Janet Jonna
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2019Structural Characterization of Membrane-Electrode-Assemblies in High Temperature Polymer Electrolyte Membrane Fuel Cellscitations
- 2018Citrate- and glycerol triesters as novel dual-functional dispersants and plasticisers for ceramic processingcitations
- 2017Enhanced densification of thin tape cast Ceria-Gadolinium Oxide (CGO) layers by rheological optimization of slurriescitations
- 2015Roll-to-Roll Printed Silver Nanowire Semitransparent Electrodes for Fully Ambient Solution-Processed Tandem Polymer Solar Cellscitations
- 2014Removal of NO x with Porous Cell Stacks with La 0.85 Sr0.15Co x Mn 1-x O 3+δ -Ce 0.9 Gd 0.1 O 1.95 Electrodes Infiltrated with BaOcitations
- 2014Removal of NOx with Porous Cell Stacks with La0.85Sr0.15CoxMn1-xO3+δ-Ce0.9Gd0.1O1.95 Electrodes Infiltrated with BaOcitations
- 2013High Temperature Oxidation of Ferritic Steels for Solid Oxide Electrolysis Stackscitations
- 2013High Temperature Oxidation of Ferritic Steels for Solid Oxide Electrolysis Stackscitations
- 2013Transmission Electron Microscopy Specimen Preparation Method for Multiphase Porous Functional Ceramicscitations
- 2013Transmission Electron Microscopy Specimen Preparation Method for Multiphase Porous Functional Ceramicscitations
- 2013Fabrication and Characterization of multi-layer ceramics for electrochemical flue gas purificationcitations
- 2013Fabrication and Characterization of multi-layer ceramics for electrochemical flue gas purificationcitations
- 2013Low cost transportable device for transference of atmosphere sensitive materials from glove box to SEM
- 2012Performance-Microstructure Relations in Ni/CGO Infiltrated Nb-doped SrTiO3 SOFC Anodescitations
- 2012Performance-Microstructure Relations in Ni/CGO Infiltrated Nb-doped SrTiO3 SOFC Anodescitations
- 2012Microstructural evolution of nanosized Ce 0.8 Gd 0.2 O 1.9 /Ni infiltrate in a Zr 0.84 Y 0.16 O 1.92 -Sr 0.94 Ti 0.9 Nb 0.1 O 3-δ based SOFC anode under electrochemical evaluation
- 2012Microstructural evolution of nanosized Ce0.8Gd0.2O1.9/Ni infiltrate in a Zr0.84Y0.16O1.92-Sr0.94Ti0.9Nb0.1O3-δ based SOFC anode under electrochemical evaluation
- 2009Chromium poisoning of LSM/YSZ and LSCF/CGO composite cathodescitations
- 2003Thixoforming of an automotive part in A390 hypereutectic Al-Si alloycitations
Places of action
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article
Structural Characterization of Membrane-Electrode-Assemblies in High Temperature Polymer Electrolyte Membrane Fuel Cells
Abstract
In high temperature polymer electrolyte fuel cells, polybenzimidazolemembranes doped in phosphoric acid are used as electrolytematerial. The membrane thickness directly relate tothe amount of absorbed acid which relate to performance. In this study,we compare scanning electron microscopy and X-raymicro-computed tomography (CT) regarding suitability for determining thestructure of electrolyte membranes. Semi-automatedlayer identification and thickness estimation was used to reduce humanerrors and data processing time. Scanning electronmicroscopy was found reliable for membrane thickness characterizationdespitenecessary destructive sample preparation. WithX-ray CT it was possible to study the cells non-destructively before andaftercell test. This made it possible to identify,so-called hot pressing, as the step in which the membrane lost most ofits thickness.After cell operation, the use of X-ray CT at largefield of view and a recently developed layer detection algorithm made itpossible to visualize compression of the membranein a pattern identical to that of the flow plate channels. Thiscompressionpattern would have been difficult to determine withconventional electron microscopy or X-ray CT without semi-automatedlayerdetection.