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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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Sorsa, Olli
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2022Hydrogen evolution in alkaline medium on intratube and surface decorated PtRu catalystcitations
- 2019Stable reference electrode in polymer electrolyte membrane electrolyser for three-electrode measurementscitations
- 2019Flexible and Mechanically Durable Asymmetric Supercapacitor Based on NiCo-Layered Double Hydroxide and Nitrogen-Doped Graphene Using a Simple Fabrication Methodcitations
- 2019Flexible and Mechanically Durable Asymmetric Supercapacitor Based on NiCo-Layered Double Hydroxide and Nitrogen-Doped Graphene Using a Simple Fabrication Methodcitations
- 2017Co-electrodeposited mesoporous PtM (M=Co, Ni, Cu) as an active catalyst for oxygen reduction reaction in a polymer electrolyte membrane fuel cellcitations
- 2015Trimetallic catalyst based on PtRu modified by irreversible adsorption of Sb for direct ethanol fuel cellscitations
Places of action
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article
Co-electrodeposited mesoporous PtM (M=Co, Ni, Cu) as an active catalyst for oxygen reduction reaction in a polymer electrolyte membrane fuel cell
Abstract
esoporous thin films of PtCo, PtNi and PtCu are prepared by a single-step potentiostatic electrodeposition on a carbon substrate. Films are characterized by SEM, XRD, XRF and BET, and their activity for oxygen reduction reaction (ORR) is studied in an acidic three-electrode cell. The results are compared with both a commercial nanoparticle Pt/C catalyst and a Pt catalyst prepared using the same method. Additionally, the ORR activity of PtCo is studied in a fuel cell. The onset potential of ORR is found to be higher for all the electrodeposited catalysts compared to commercial Pt/C. The ORR activity of mesoporous Pt is found to be linearly dependent on the amount of deposited platinum within a platinum loading range of 0.1−0.5 mg cm⁻². All the mesoporous catalysts exhibited higher mass activity towards ORR than commercial Pt/C. Of the studied catalysts, PtCo is found to have the highest durability. Similar results are obtained in fuel cell experiments as PtCo exhibits enhanced durability and activity towards ORR, peak powers being 60, 70 and 90 mW gPt⁻¹ for commercial Pt/C, mesoporous Pt and mesoporous PtCo, respectively.