Alternativer Identifier:
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Verwandter Identifier:
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Ersteller/in:
Braun, Tobias [Helmholtz-Institut Ulm]

Dinda, Sirshendu [Helmholtz-Institut Ulm]

Karkera, Guruprakash [Helmholtz-Institut Ulm]

Melinte, Georgian [Helmholtz-Institut Ulm]

Diemant, Thomas [Helmholtz-Institut Ulm]

Kübel, Christian K. U. https://orcid.org/0000-0001-5701-4006 [Institut für Nanotechnologie, Helmholtz-Institut Ulm, Karlsruhe Nano Micro Facility]

Fichtner, Maximilian [Helmholtz-Institut Ulm]

Pammer, Frank [Helmholtz-Institut Ulm]
Beitragende:
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Titel:
Multi-Component PtFeCoNi Core-Shell Nanoparticles on MWCNTs as Promising Bifunctional Catalyst for Oxygen Reduction and Oxygen Evolution Reactions
Weitere Titel:
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Beschreibung:
(Abstract) The development of commercially viable fuel cells and metal air batteries requires effective and cheap bifunctional catalysts for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER). Multi-component Pt-Fe-Co-Ni nanoparticles on multi-walled carbon nanotubes (MWCNTs) were synthesized by wet chemistry route via NaBH4 reduction of metal salts, followed by sintering at different temperatures. The catalyst demonstrates an excellent ORR activity and a promising OER activity in 0.1 m KOH, with a bi-functional overpotential, ΔE of 0.83 V, which is comparable to the values of Pt/C or RuO2. Furthermore, it shows outstanding long-term stability in ORR and OER, namely diffusion limited current density at a potential of 0.3 V decreased just by 5.5% after 10000 cycles in ORR. The results of the PFCN@NT300 indicate a significant effect of the substitution of Pt by the transition metal (TM) and the formation of nanoparticles on the catalytic performance, especially in the OER.
(Technical Remarks) TEM data in Velox and Digital Micrograph format, XPS data in CASA format, TGA as text file, XRD as text file with angle and intensity.
Schlagworte:
TEM
XRD
XPS
TGA
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Sprache:
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Erstellungsjahr:
Fachgebiet:
Engineering
Objekttyp:
Dataset
Datenquelle:
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Datenverarbeitung:
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Erscheinungsjahr:
Lizenz:
Rechteinhaber/in:
Braun, Tobias

Dinda, Sirshendu

Karkera, Guruprakash

Melinte, Georgian

Diemant, Thomas

Kübel, Christian K. U. https://orcid.org/0000-0001-5701-4006

Fichtner, Maximilian

Pammer, Frank
Förderung:
-
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Status:
Publiziert
Eingestellt von:
kitopen
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Archivierungsdatum:
2023-07-04
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99,4 MB
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kitopen
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4fa955dab9ec2e89ff8d458d9de811fe (MD5)
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