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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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Müller-Hülstede, Julia
German Aerospace Center
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2024Doped carbon aerogels as Fe-N-C catalyst in high temperature polymer electrolyte membrane fuel cell
- 2024Effect of Non-ionic Surfactant on Fe-N-C Catalyst Layers under HT-PEMFC Conditions
- 2024Pathways towards reduction of Pt-loading in HT-PEMFC
- 2023How Effective Is Graphitization of Biomasses for the Carbon Stability of Pt/C ORR Catalysts?citations
- 2022Comparative Study of Platinum Nanoparticle Deposition on TiO<sub>2</sub>/BP and SnO<sub>2</sub>/BP Nanocomposites for the Oxygen Reduction Reactioncitations
Places of action
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article
How Effective Is Graphitization of Biomasses for the Carbon Stability of Pt/C ORR Catalysts?
Abstract
<jats:p>Catalysts for the oxygen reduction reaction (ORR) in PEM fuel cells are commonly constituted of Pt-based nanoparticles and a carbon support originating from fossil resources. In order to employ a more sustainable carbon support, activated sawdust was chosen in this study. This was firstly steam-activated at 750 °C and then thermally treated at elevated temperatures up to 2800 °C and reducing conditions at 1100 °C. Various physical characterization methods were applied to systematically relate treatment parameters to surface and structural properties of the carbon material. Deposition of small Pt nanoparticles on the biochar-based supports yielded in ORR active catalysts which were analyzed by thin-film rotating disc electrode measurements. The activity and stability towards the ORR of these novel catalysts was compared to a commercial raw oil-based Pt/C and the influence of support modification on the ORR performance was discussed.</jats:p>