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Abstract
In this work, the metal content of Pd 85Ni 10Bi 5/C catalysts for the alkaline ethanol-oxidation reaction was reduced from 40 wt.% (PdNiBi/C (40/60)) to 30 wt.% (PdNiBi/C (30/70)), 20 wt.% (PdNiBi/C (20/80)) and 10 wt.% (PdNiBi/C (10/90)), while increasing performance. The synthesized catalysts were examined using physicochemical measurements and electrochemical measurements. The best performing catalysts were used to fabricate membrane electrode assemblies for carrying out single-cell tests and to determine the influence of the metal/carbon ratio of the electrode. The electrochemical surface area (695 cm 2 mg −1) and activity were increased, resulting in high peak-current densities for the ethanol oxidation reaction (3.72 A mg −1) by the resulting more accessible metal particles. The electrode produced with the PdNiBi/C (30/70) catalyst reached a maximum power density of 34.8 mW mg −1 at 50 °C. This successfully demonstrated a doubling of the power density compared with the performance of the PdNiBi/C (40/60) electrode, while simultaneously reducing the costs.
Originalsprache | englisch |
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Aufsatznummer | 15485 |
Fachzeitschrift | Sustainability |
Jahrgang | 14 |
Ausgabenummer | 22 |
DOIs | |
Publikationsstatus | Veröffentlicht - 21 Nov. 2022 |
ASJC Scopus subject areas
- Informatik (sonstige)
- Umweltwissenschaften (sonstige)
- Geografie, Planung und Entwicklung
- Energieanlagenbau und Kraftwerkstechnik
- Hardware und Architektur
- Management, Monitoring, Politik und Recht
- Bauwesen
- Computernetzwerke und -kommunikation
- Erneuerbare Energien, Nachhaltigkeit und Umwelt
Fields of Expertise
- Mobility & Production
- Advanced Materials Science
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- 1 Abgeschlossen
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FWF – GODEFC - Graphenoxid basierte MEEs für Direkt-Ethanol-Brennstoffzelle
Hacker, V., Wolf, S., Roschger, M. & Samsudin, A. M.
1/01/19 → 30/06/22
Projekt: Forschungsprojekt