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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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El-Kharouf, Ahmad
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Experimental and Numerical Evaluation of Polymer Electrolyte Fuel Cells with Porous Foam Distributor
- 2022Evaluation of inkjet-printed spinel coatings on standard and surface nitrided ferritic stainless steels for interconnect application in solid oxide fuel cell devicescitations
- 2022Optimization of a ScCeSZ/GDC bi-layer electrolyte fabrication process for intermediate temperature solid oxide fuel cellscitations
- 2021Magnetically modified electrocatalysts for oxygen evolution reaction in proton exchange membrane (PEM) water electrolyzerscitations
- 2020Electrochemical performance and carbon resistance comparison between Sn, Cu, Ag, and Rh-doped Ni/ScCeSZ anode SOFCs operated by biogas
- 2020Formulation of Spinel based Inkjet Inks for Protective Layer Coatings in SOFC Interconnectscitations
- 2018Evaluation of Inkjet Printed Protective Layer Coatings for SOFC Interconnects
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article
Formulation of Spinel based Inkjet Inks for Protective Layer Coatings in SOFC Interconnects
Abstract
In this study, inkjet printing technology was adopted for the application of protective layer coatings on metallic Solid Oxide Fuel Cell (SOFC) interconnects. The study highlights the potential of the inkjet printing process to fabricate aqueous-based protective layer coatings over ferritic stainless steels, a novel, very flexible and low-cost approach to coating. The work presented focusses on the formulation of aqueous-based spinel particulate inks for the inkjet<br/>printing process using an electro-magnetic inkjet printer. An ink formulation route based on a two-stage ball milling technique was developed to produce a printable ink composition with Manganese Cobalt Oxide (MnCo2O4, MCO) and Manganese Cobalt Ferrite (MnCo1.8Fe0.2O4, MCF) as the coating materials. The stability of the ink suspensions, and particle size distribution were studied and characterised using zeta and a particle size analysis, respectively.<br/>The flow properties of the inks were analysed using a conventional rheometer at shear rates 1 to 1000 s-1 and Piezo Axial Vibrator rheometer at higher shear rates (10-6 s-1). Finally, the printability of the inks was assessed theoretically based on the Ohnesorge number, Z. The formulated MCO and MCF inks with ~ 25 wt.% solid loading exhibited Z values of 4.17 and 6.77, satisfying the printability criteria of the inkjet inks. The printability of the inks was<br/>demonstrated by printing them on stainless-steel substrates. The printed layers were free of any visible defects after heat-treatment. The demonstrated ink formulation procedure provides a guide for inkjet inks development with respect to inkjet printer requirements. Furthermore, the outlined methodology can be employed to fabricate protective and other coatings for any kind<br/>of metallic components such as bipolar plates and heat-exchangers.