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Abstract
The sluggish kinetics of the ethanol oxidation reaction (EOR) and the related development of low-cost, highly active and stable anode catalysts still remains the major challenge in alkaline direct ethanol fuel cells (ADEFCs). In this respect, we synthesized a PdNiBi nanocatalyst on reduced graphene oxide (rGO) via a facile synthesis method. The prepared composite catalyst was physicochemically characterized by SEM, STEM, EDX, ICP-OES and XRD to analyze the morphology, particle distribution and size, elemental composition and structure. The electrochemical activity and stability towards EOR in alkaline media were examined using the thin-film rotating disk electrode technique. The results reveal well-dispersed and strongly anchored nanoparticles on the rGO support,providing abundant active sites. The PdNiBi/rGO presents a higher EOR activity and stability compared to a commercial Pd/C ascribed to a high ECSA and synergistic effects between Pd, Ni and Bi and the rGO material. These findings suggest PdNiBi/rGO as a promising anode catalyst in ADEFC applications.
Originalsprache | englisch |
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Seiten (von - bis) | 771-782 |
Seitenumfang | 12 |
Fachzeitschrift | Journal of Electrochemical Science and Engineering |
Jahrgang | 13 |
Ausgabenummer | 5 |
Frühes Online-Datum | 8 Feb. 2023 |
DOIs | |
Publikationsstatus | Veröffentlicht - 9 Aug. 2023 |
Veranstaltung | 8th Regional Symposium on Electrochemistry of South-East Europe and 9th Kurt Schwabe Symposium: RSE-SEE 2022 - TU Graz, Graz, Österreich Dauer: 11 Juli 2022 → 15 Juli 2022 Konferenznummer: 8 |
ASJC Scopus subject areas
- Chemische Verfahrenstechnik (sonstige)
- Werkstoffchemie
- Elektrochemie
- Kolloid- und Oberflächenchemie
Fields of Expertise
- Advanced Materials Science
- Mobility & Production
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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