Polani, Shlomi ; Amitrano, Raffaele ; Baumunk, Adrian Felix ; Pan, Lujin ; Lu, Jiasheng ; Schmitt, Nicolai ; Gernert, Ulrich ; Klingenhof, Malte ; Selve, Sören ; Günther, Christian M. ; Etzold, Bastian J. M. ; Strasser, Peter (2024)
Oxygen Reduction Reaction Activity and Stability of Shaped Metal-Doped PtNi Electrocatalysts Evaluated in Gas Diffusion Electrode Half-Cells.
In: ACS Applied Materials & Interfaces, 2024, 16 (39)
doi: 10.26083/tuprints-00028196
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
The synthesis of bimetallic and trimetallic platinum-based octahedral catalysts for the cathode of proton exchange membrane fuel cells (PEMFCs) is a particularly active area aimed at meeting technological requirements in terms of durability and cost. The electrocatalytic activity and stability of these shaped catalysts were tested at relatively high potentials (@0.9 V vs RHE) and at lower current densities using the rotating disk electrode, which is less suitable for assessing their behavior under the operating conditions of PEMFCs. In this work, we use a gas diffusion electrode (GDE) half-cell setup to test the performance of the catalysts under application-oriented conditions, relatively higher current densities, and a square-wave stability test. After the stability test, we analyzed the GDE catalytic layer to study the agglomeration and dissolution of the transition metal under these conditions by using high-resolution scanning electron microscopy and energy-dispersive X-ray spectroscopy. The present results provide valuable guidance for developing next-generation active and durable catalysts for PEMFCs.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2024 |
| Autor(en): | Polani, Shlomi ; Amitrano, Raffaele ; Baumunk, Adrian Felix ; Pan, Lujin ; Lu, Jiasheng ; Schmitt, Nicolai ; Gernert, Ulrich ; Klingenhof, Malte ; Selve, Sören ; Günther, Christian M. ; Etzold, Bastian J. M. ; Strasser, Peter |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Oxygen Reduction Reaction Activity and Stability of Shaped Metal-Doped PtNi Electrocatalysts Evaluated in Gas Diffusion Electrode Half-Cells |
| Sprache: | Englisch |
| Publikationsjahr: | 18 Dezember 2024 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 19 September 2024 |
| Ort der Erstveröffentlichung: | Washington D.C. |
| Verlag: | American Chemical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | ACS Applied Materials & Interfaces |
| Jahrgang/Volume einer Zeitschrift: | 16 |
| (Heft-)Nummer: | 39 |
| DOI: | 10.26083/tuprints-00028196 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/28196 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | The synthesis of bimetallic and trimetallic platinum-based octahedral catalysts for the cathode of proton exchange membrane fuel cells (PEMFCs) is a particularly active area aimed at meeting technological requirements in terms of durability and cost. The electrocatalytic activity and stability of these shaped catalysts were tested at relatively high potentials (@0.9 V vs RHE) and at lower current densities using the rotating disk electrode, which is less suitable for assessing their behavior under the operating conditions of PEMFCs. In this work, we use a gas diffusion electrode (GDE) half-cell setup to test the performance of the catalysts under application-oriented conditions, relatively higher current densities, and a square-wave stability test. After the stability test, we analyzed the GDE catalytic layer to study the agglomeration and dissolution of the transition metal under these conditions by using high-resolution scanning electron microscopy and energy-dispersive X-ray spectroscopy. The present results provide valuable guidance for developing next-generation active and durable catalysts for PEMFCs. |
| Freie Schlagworte: | octahedral PtNi/C electrocatalyst, metal doping, proton exchange membrane fuel cell, high performance and durability, rotating disk electrode, gas diffusion electrode, half-cell setup |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-281961 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie 600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie |
| Fachbereich(e)/-gebiet(e): | 07 Fachbereich Chemie 07 Fachbereich Chemie > Ernst-Berl-Institut 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie 07 Fachbereich Chemie > Ernst-Berl-Institut > Fachgebiet Technische Chemie > Technische Chemie I |
| Hinterlegungsdatum: | 18 Dez 2024 13:21 |
| Letzte Änderung: | 19 Dez 2024 09:21 |
| PPN: | 524845514 |
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| Suche nach Titel in: | TUfind oder in Google |
Verfügbare Versionen dieses Eintrags
- Oxygen Reduction Reaction Activity and Stability of Shaped Metal-Doped PtNi Electrocatalysts Evaluated in Gas Diffusion Electrode Half-Cells. (deposited 18 Dez 2024 13:21) [Gegenwärtig angezeigt]
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